338results about How to "Easy to convert" patented technology

The invention provides a cylindrical hydrodynamic ventilation structure special for a cooling tower fan, and belongs to the technical field of cooling ventilation. Comprising a tower body, a water basin is installed at the bottom of the tower body, a water inlet pipe is installed at one end of the water basin, a water return pipe is installed at the top of the water inlet pipe, a water pump is arranged at one end of the water inlet pipe, and a water outlet pipe is installed at one end of the water basin. By arranging the worm gear speed increasing assembly and the power driving assembly, kinetic energy of water flow is converted into mechanical energy through circulation of water power, the cooling process is accelerated, complex parts such as a motor and a transmission device in a traditional cooling tower are reduced, the manufacturing cost is reduced, maintenance points and the fault rate are reduced, and the service life of the cooling tower is prolonged. The reliability and stability of the system are improved, the rotation angle adjustment of the fan blades is increased, the air volume is increased, evaporation and heat dissipation of water are accelerated, energy consumption is reduced, the flexibility of the system is enhanced, and the ventilation structure can adapt to different working environments and cooling requirements.

The utility model belongs to the technical field of sliced beef production, and particularly relates to a sliced beef production device which comprises a base. A fixing frame is fixedly connected to the base, a first motor is installed in the fixing frame, the output end of the first motor is connected with a rotating shaft, the end of the rotating shaft penetrates through the top of the fixing frame to be fixedly connected with a circular block, a connecting column is fixedly connected to the circular block, and a supporting plate is fixedly connected to the top end of the connecting column. A plurality of supporting columns are fixedly connected to the supporting plate, a placing plate is assembled on each supporting column, a baffle is fixedly connected to the supporting plate, and a cutting groove is formed in the baffle; when the cutting direction needs to be changed, the round block rotates through operation of the first motor, and then the connecting column drives the supporting plate to rotate, so that convenient conversion between transverse cutting and vertical cutting can be achieved, frequent shutdown adjustment is avoided, and the production efficiency is greatly improved.

A method for automatically generating sql statements in a Chinese natural language relates to the technical field of large language models, automatically matches a corresponding database through database Chinese description information and based on original Chinese questions of a user, and adds Chinese descriptions in database table-building statements and sql-query pairs, so that Chinese matching precision is improved, and user experience is improved. And the interaction between the user and the database is simplified. According to the method, the relation between the question and the table content and the relation between the question and the sql-query pair are strengthened, feature vectors are constructed, irrelevant database prompt information is optimized, and the matching rate between Chinese natural language query description and data stored in a database is increased.

The utility model provides drinking water filling equipment. The drinking water filling equipment comprises a cover input mechanism, a cover conveying mechanism, a cover feeding mechanism, a cover screwing mechanism, a first turnover mechanism, a disinfection mechanism, a cleaning mechanism, a shifting mechanism, a second turnover mechanism, a filling mechanism, an input conveying line and an output conveying line, the cap input mechanism conveys caps to the capping mechanism through the cap conveying mechanism, the input conveying line conveys barrels or bottles to the feeding station, the first overturning mechanism overturns the barrels or bottles by 180 degrees, the disinfection mechanism disinfects the barrels or bottles, the shifting mechanism moves to the cleaning station, the cleaning mechanism cleans the barrels or bottles, the second overturning mechanism overturns the barrels or bottles by 180 degrees, and the output conveying line conveys the barrels or bottles to the filling station. The filling mechanism conducts filling, the output conveying line conveys the products to the upper cover station, the upper cover mechanism conducts cover feeding, the output conveying line conveys the products to the cover screwing station, the cover screwing mechanism tightens the covers, and the output conveying line outputs the products outwards. The device is simple in structure, high in efficiency, small in occupied space, low in cost, suitable for multi-type and multi-specification production, very simple in conversion, convenient and fast.

The invention relates to a preparation method and application of a basalt fiber fabric based carbon dot / carbon black solar interface evaporation material. The preparation method comprises the following steps: firstly, preparing carbon dots, then combining the carbon dots with carbon black by utilizing a hydrothermal reaction, and loading the carbon dot / carbon black composite material onto a fabric by a dip coating method. According to the obtained carbon dot / carbon black composite material, not only is the hydrophilic performance of the basalt fiber fabric improved, but also the photo-thermal performance of the basalt fiber fabric is improved, under the sunlight intensity, the evaporation rate of the basalt fiber fabric to pure water reaches 2.05 kg m <-2 > h <-1 >, and the evaporation rate of the basalt fiber fabric to simulated seawater still reaches 1.88 kg m <-2 > h <-1 >. According to the technical scheme, the technology is simple, large-scale production is easy, a large amount of fresh water can still be generated in the high-concentration seawater environment, an effective solution is provided for shortage of fresh water resources, and the method has wide application prospects in the field of seawater desalination.

The invention relates to an electromagnetic wave polarization conversion system and conversion method based on a non-Hermite metasurface, the conversion system comprises a dual-port model having an x polarization mode and a y polarization mode, and the dual-port model satisfies that the two polarization modes have the same resonant frequency omega0, radiation loss gamma and intrinsic loss gamma, certain coupling strength kappa exists between the two polarization modes, and the resonant frequency omega0, the radiation loss gamma, the intrinsic loss gamma and the coupling strength kappa meet the condition that when x polarized waves / y polarized waves are only emitted to the two sides of the dual-port model, the corresponding emitted x polarized waves / y polarized waves are 0, and the emitted x polarized waves / y polarized waves are 0. Therefore, the dual-port model forms an equivalent PT symmetrical metasurface structure with the maximum linear polarization conversion efficiency. Electromagnetic wave polarization conversion is achieved through the PT symmetric metasurface based on the equivalent gain, materials do not need to have real gain or different losses of oscillators in a structure are not required, and material use and structural design can be simplified.

The utility model discloses a five-roller film coating device for two processes of forward coating and reverse coating, which comprises a forward glue coating steel roller, a reverse glue coating steel roller, a forward transfer glue roller and a reverse transfer glue roller, and the two processes share a glue tank; the diameter of the reverse transfer rubber roller is smaller than that of the forward transfer rubber roller, and the forward transfer rubber roller and the reverse transfer rubber roller are arranged below the forward glue coating steel roller and the reverse glue coating steel roller and are arranged relative to the forward glue coating steel roller and the reverse glue coating steel roller; the forward glue coating steel roller, the reverse glue coating steel roller, the forward transfer glue roller and the reverse transfer glue roller are respectively driven by a motor to rotate, a transverse transmission mechanism is used for adjusting the relative distance between the forward glue coating steel roller and the reverse glue coating steel roller, and the forward transfer glue roller and the reverse transfer glue roller are respectively provided with a lifting mechanism. The working states of the forward gluing steel roller and the reverse gluing steel roller are interchanged, and the working states of the forward transfer rubber roller and the reverse transfer rubber roller are interchanged, so that two processes of forward coating and reverse coating are interchanged.

The invention discloses a computer display screen color gamut processing system, and particularly relates to the technical field of display color gamut processing, which comprises an input signal intelligent module used for analyzing and optimizing input signals in real time, and a color gamut intelligent conversion and adjustment module used for automatically adjusting colors to realize consistency between devices and optimize visual experience. The color gamut processing capability of the display screen is remarkably improved through the intelligent processing module, the input signal intelligent processing module adopts an artificial intelligence algorithm, automatically identifies and analyzes a signal format, dynamically adjusts an analysis strategy, realizes optimal conversion of a color space, dynamically adjusts a gamma curve in combination with ambient light and image content, and improves the color gamut processing capability of the display screen. And deep learning is utilized to remove noise and ensure that the image is clear, and the intelligent color gamut conversion and adjustment module optimizes color gamut mapping and emotion color adjustment through deep learning and emotion calculation technologies, and adaptively adjusts white balance to ensure that the color is accurate.

The invention belongs to the technical field of metal corrosion numerical simulation analysis, and particularly relates to an aviation metal braided conductor point cloud data entity modeling method based on cellular corrosion, which comprises the following steps: S1, establishing a three-dimensional cellular space for simulating an aviation metal braided conductor corrosion environment; s2, conducting wire corrosion process simulation modeling according to the three-dimensional cellular space, and determining wire cellular transformation and diffusion rules and corresponding corrosion and diffusion probabilities; s3, constructing a lead cell three-dimensional space point cloud equation, and generating lead grid units; and S4, splicing the wire tetrahedral mesh units to generate a smooth curved surface, and completing aviation metal braided wire point cloud data materialized modeling. According to the method, the three-dimensional discrete points, generated in the cellular automaton, of the aviation metal braided conductor can be converted into entities in finite element simulation software, the complex surface appearance of the aviation metal braided conductor is reserved, the conversion process from simulation to an entity model is optimized, and the method is good in applicability.

The utility model discloses a novel mobile phone shell, which comprises a mobile phone shell body and a belt body, the mobile phone shell body is provided with a sliding groove, the end part of the belt body is connected with a first clamping piece, the first clamping piece is arranged in the sliding groove and slides in the sliding groove, two ends of the sliding groove are respectively provided with a second clamping piece, and the first clamping piece is clamped with the second clamping piece. According to the mobile phone shell, the first clamping piece on the belt body slides in the sliding groove in the mobile phone shell body and is clamped with the second clamping pieces at the two ends of the sliding groove, so that conversion between an unfolded state and a bent state is realized. When a user needs to bend the belt body, the user only needs to pull the belt body to enable the first clamping piece to slide to the other end of the sliding groove and to be clamped with the second clamping piece at the end, and when the user needs to unfold the belt body, the user only needs to push the belt body to enable the first clamping piece to slide to one end of the sliding groove and to be clamped with the second clamping piece at the end, so that the operation steps of the user are simplified; therefore, the belt body can be converted between bending and tiling more quickly and conveniently.

The invention discloses a rotatable cantilever crane for erecting bridge sections and a method for erecting a steel box girder. The rotatable cantilever crane for bridge segment erection comprises a main framework, a crane carriage, a rotating mechanism and a lifting appliance, the main framework comprises two longitudinal main beams, a front cross beam and a rear cross beam are connected between the two longitudinal main beams, and a middle stand column and a rear stand column are connected to the lower portions of the middles and the lower portions of the rear ends of the longitudinal main beams correspondingly; the lower end of the middle stand column and the lower end of the rear stand column are both fixedly connected with the bottom frame, the bottom frame is movably matched with the walking track, supporting jacks are arranged on the lower portion of the front end and the lower portion of the rear end of the bottom frame, and a first main inclined supporting rod and a second main inclined supporting rod are detachably connected between the longitudinal main beam and the bottom frame. The hoisting trolley is movably arranged between the two longitudinal main beams, the lifting appliances are connected to the lower portion of a winch pulley block of the hoisting trolley through rotating mechanisms, and leveling jacks are arranged on the lifting appliances.

The invention provides a hydrogel fruit preservative capable of being sprayed and produced on a large scale as well as a preparation method and application of the hydrogel fruit preservative. The hydrogel fruit preservative comprises the following raw materials: a mixed solvent of polyvinyl alcohol, tannic acid, ethanol and deionized water. The hydrogel fruit preservative disclosed by the invention is simple in preparation method and raw material composition, low in cost, capable of being produced on a large scale, environment-friendly, easy to clean, recoverable, recyclable, capable of quickly forming a film (within 50s), uniform and smooth after film forming, high in mechanical strength, and has the characteristics of being antibacterial, antioxidant, uvioresistant, low in water oxygen transmission efficiency and the like.

The invention discloses a cross-platform smart home control method and device, equipment and a storage medium, and the method comprises the steps: determining target equipment and to-be-converted instruction information corresponding to the target equipment in response to a user instruction; determining a protocol conversion rule suitable for the to-be-converted instruction information by using a pre-constructed instruction identification model; based on a protocol conversion rule, performing protocol conversion on the to-be-converted instruction information to obtain target instruction information of the target equipment; and controlling the target equipment to operate based on the target instruction information. According to the cross-platform smart home control method and device, the equipment and the storage medium disclosed by the invention, the problem that a user needs to use a plurality of application programs to control different smart equipment in an existing communication mode is solved, so that interoperability between different smart equipment is realized, different application programs do not need to be used to control different smart equipment, and the user experience is improved. The operation steps of the user are reduced, and the flexibility and expansibility of the smart home system are effectively improved.

The oil-gas separation structure comprises a shell and an oil blocking structure, and the shell has a first direction and a second direction which intersect with each other; the oil blocking structure comprises a first oil blocking part and a second oil blocking part; wherein the first oil blocking part and one side of the shell are arranged in a spaced mode in the first direction to form a first oil-gas separation channel, the first oil blocking part and the other side of the shell are arranged in a spaced mode in the first direction to form a second oil-gas separation channel, the first oil blocking part is connected with the shell, and the first oil blocking part and one side of the shell are arranged in a spaced mode in the second direction; a communication port is formed; the second oil blocking part is connected with the first oil blocking part, the second oil blocking part is arranged in a protruding mode relative to the first oil blocking part in the first direction, the second oil blocking part is located in the first oil-gas separation channel, and the second oil blocking part and the shell are arranged in a spaced mode. According to the oil-gas separation structure, the speed reducer and the vehicle, the cooling time and the heat dissipation area of high-temperature mixed oil gas can be increased, and the high-temperature mixed oil gas can be converted into the liquid state more effectively.

The utility model relates to a crane for replacing parts of a wind driven generator, the crane comprises a winch assembly and a hoisting device, the winch assembly is arranged at the lower part of a tower drum, the hoisting device is arranged at the upper part of the tower drum, and the winch assembly is connected with the hoisting device through a steel wire rope; the lifting equipment comprises a rope guide frame, a lifting arm and a lifting hook, a pulley system is arranged on the lifting arm, the winch and the steel wire rope form a crane lifting rope system through the rope guide frame and the pulley system, and the lifting hook is arranged at the tail end of the steel wire rope; the hoisting equipment further comprises a hoisting equipment base and a rotary table, the rotary table is arranged on the hoisting equipment base in an inserted mode, the rotary table rotates in the horizontal plane, and a cargo boom is arranged on the rotary table and connected with the rotary table through a variable amplitude cylinder. Compared with the prior art, large components of the fan do not need to be replaced by a large crane, and switching can be conveniently carried out among different hoisting positions.

The utility model provides a photovoltaic panel sweeper and belongs to the technical field of sweepers. The photovoltaic panel sweeping machine comprises a main body and a cleaning mechanism, the main body comprises a supporting frame, a placing frame is fixedly installed on the upper end face of the supporting frame, a pair of installing bases are fixedly installed at one end of the placing frame, connecting shafts are rotationally connected into the installing bases, the cleaning mechanism comprises an installing frame, and sliding grooves are formed in the two sides of the installing frame. Sliding rods are fixedly mounted at the upper ends of the interiors of the sliding grooves, the sliding rods are slidably sleeved with mounting blocks, the bottom ends of the pair of mounting blocks are connected with the two ends of the connecting shaft correspondingly, first linear motors are fixedly mounted on the two sides of the upper end face of the mounting frame correspondingly, and a second linear motor is fixedly mounted between the moving ends of the pair of first linear motors; according to the photovoltaic panel cleaning machine, the practicability of the photovoltaic panel cleaning machine can be effectively improved, and the photovoltaic panel cleaning machine has high practical value.

The utility model discloses an air purification system for a pasture. The air purification system of the pasture comprises an air taking chimney, a gas guiding device, an acid liquor deodorization mechanism and an activated carbon deodorization mechanism. The gas guiding device comprises a Y-shaped shell, a V-shaped beam, a sealing electromagnetic valve and a gas detector, the V-shaped beam is arranged in the shell, a first conveying channel and a second conveying channel are formed by the outer wall of the V-shaped beam and the inner wall of the shell, and one end of the sealing electromagnetic valve is hinged to one end of the V-shaped beam; the acid liquor deodorization mechanism is connected with the first conveying channel; the activated carbon deodorization mechanism is connected with the second transporter. The acid liquor deodorization mechanism and the activated carbon deodorization mechanism are arranged and switched under different air temperatures, the problems that liquid is prone to freezing and air in a pasture is difficult to purify when the air temperature is low in winter are solved, meanwhile, the problems that when the temperature is low and the odor concentration is relatively low, odor purification is large in power consumption and high in cost are solved, and meanwhile, continuous purification throughout the year is achieved; and the equipment cannot be stopped after long-term operation and is difficult to maintain.

The embodiment of the present invention relates to a method, device, electronic device and storage medium for reconstructing a three-dimensional face model, including: obtaining a face image pair of a target object under N viewing directions; for a face image pair under any viewing direction, determining a target color image according to a color image and a depth image in the face image pair; inputting the target color image into a preset image algorithm plug-in to obtain a face area in the target color image; converting the target color image into a face mask matrix according to the face area; using the face mask matrix, processing the depth image to obtain a target depth image, and converting the target depth image into a face point cloud of the target object under the viewing direction; determining a target face point cloud according to the face point cloud of the target object under N viewing directions, and performing surface reconstruction on the target face point cloud to obtain a three-dimensional face model. Thus, it is possible to obtain a face point cloud more conveniently and efficiently.

The invention relates to a silicon-based negative electrode material based on metal oxide coating and preparation and application thereof, and a preparation method of the material comprises the following steps: S1, putting a silicon-based material into a solvent for ultrasonic dispersion to obtain a uniform suspension; s2, adding a metal oxide precursor into the suspension obtained in S1, and carrying out hydrolysis or condensation reaction to generate a continuous metal oxide coating layer on the surface of the silicon-based material in situ; and S3, after the reaction is finished, centrifugally separating, washing and drying the obtained product to obtain the silicon-based negative electrode material, namely a target product. Compared with the prior art, the method provided by the invention is simple in process, low in cost and good in repeatability, and the obtained coated silicon material has excellent structural stability and electrochemical performance and has a wide application prospect in high-energy-density lithium ion batteries and all-solid-state batteries.

The utility model provides a convertible adjusting three-ball-seat trailer assembly. The convertible and adjustable three-ball-seat trailer assembly comprises a fixing frame, a first ball seat and a second ball seat, the fixing shaft is mounted in the fixing frame through a connecting structure, a second mounting groove is formed in the position, close to the top end, of the outer surface of the fixing shaft, a first butt joint groove is formed in the inner surface of the fixing frame, and a first ball group is arranged between the first butt joint groove and the second mounting groove; a butt joint shaft is fixedly connected to the outer surface of the fixing frame, and a plurality of fixing holes are formed in the outer surface of the fixing shaft; and the mounting frame is mounted on the outer surface of the fixing shaft through a connecting structure, a butt joint frame is fixedly connected to the front face of the mounting frame, and a second butt joint groove is formed in the inner surface of the butt joint frame. According to the trailer assembly capable of converting and adjusting the three ball seats, rapid storage can be achieved through the design, and exposure of the ball heads is avoided.

The utility model discloses a solar integrated traffic light in the technical field of traffic lights, which comprises a stand column, signal lights are arranged on the outer side wall of the stand column, a solar panel is arranged above the stand column, a cavity is formed in the stand column, and a rotating assembly comprises a rotating rod connected with the bottom in the cavity through a bearing. One end of the rotating rod penetrates through the top in the cavity and extends to the outside, the bottom of the solar panel is hinged to one end of the rotating rod, the rotating rod is sleeved with a driven gear, a motor is arranged at the bottom in the cavity, the output end of the motor is connected with a driving gear meshed with the driven gear, and an adjusting assembly is arranged at the bottom of the solar panel; the solar panel can be driven to rotate under the action of the rotating assembly, so that reasonable adjustment can be performed according to the direction of the sun, and meanwhile, the inclination angle of the solar panel can be reasonably adjusted according to the irradiation angle of the sun under the action of the adjusting assembly, so that the solar panel can better convert sunlight into electric energy.

The invention relates to the field of fruit vinegar processing, and discloses quality-improved and flavor-enriched apricot and plum fruit vinegar and a preparation method thereof.The preparation method comprises the following steps of raw material picking and pretreatment, plum juice squeezing and blending, alcoholic fermentation pretreatment, alcoholic fermentation, acetic fermentation, preliminary filtration, low-temperature clarification and centrifugal treatment; the apricot and plum fruit vinegar is processed through the processes of alcoholic fermentation, acetic fermentation, low-temperature clarification and the like, potassium caseinate is added in the low-temperature clarification stage to clarify the apricot and plum fruit vinegar, the content of bioactive components of the new variety of apricot and plum fruit vinegar is increased, the oxidation resistance of the new variety of apricot and plum fruit vinegar is improved, and meanwhile the variety of volatile flavor substances of the apricot and plum fruit vinegar is enriched; furthermore, the new variety of apricot and plum fruit vinegar is endowed with excellent taste and pleasant fragrance, and the apricot and plum fruit vinegar has the effects of resisting oxidation, resisting aging, whitening, keeping healthy and the like.

A vehicle signal connection conversion device comprises a shell and an inner core, the inner core comprises a 7-core male plug located at the front end and a 7-core female socket and a 4-core flat plug located at the rear end, the 7-core male plug, the 7-core female socket and the 4-core flat plug are located in an inner cavity of the shell 1, the 7-core male plug is electrically connected with the 7-core female socket, and the 7-core male plug is electrically connected with the 4-core flat plug. The utility model provides the signal connection conversion device for the vehicle, which has abundant functions and is convenient to use.

The embodiments of the present invention disclose a component conversion method, device, server and medium based on a low-code platform, wherein the method includes: generating an operation component expression graph according to an input operation component requirement; selecting an approximate operation component from existing operation components according to the operation component expression graph, and displaying the approximate operation component; receiving a selection operation in a virtual image component display area of ​​a program module, and determining the selected approximate operation component; splitting the approximate operation component, obtaining at least two transfer connection interfaces, and dividing the transfer connection interface into corresponding mortise and tenon interfaces and tenon interfaces based on a transfer relationship, generating a mortise and tenon graph based on the properties of the mortise and tenon interfaces, and displaying the mortise and tenon graph; after receiving a mortise and tenon graph confirmation operation, converting the approximate operation component according to the input operation component requirement.

The utility model relates to the technical field of service desks, and discloses a movable information consulting service desk which comprises a service desk body, the bottom of the service desk body is fixedly connected with cushion legs, a moving mechanism is arranged in the service desk body, and a lifting mechanism is arranged in the service desk body. The moving mechanism comprises a sliding assembly and a moving assembly, the sliding assembly is arranged in the bottom of the service desk body, and the moving assembly is arranged at the bottom of the sliding assembly. According to the movable service desk for information consultation, the arranged moving mechanism and the sliding plate are slidably connected into the service desk body to limit the clamping base, so that when the clamping base moves downwards to drive the universal wheels to move, the clamping base cannot be separated from the service desk body, the stability of the device in use is guaranteed, meanwhile, a retraction spring is arranged at the top of the sliding plate, and the service desk is convenient to use. And after the sliding plate moves upwards, the sliding plate is automatically lifted and supported, so that the universal wheels cannot automatically fall down after retracting into the service desk main body.

The charging pile comprises a charging pile body, a solar panel is adjustably arranged on the upper portion of the charging pile body, and an electric power storage assembly is arranged on the lower portion of the charging pile body; the power storage assembly comprises a box body, a supporting frame and a plurality of storage batteries, the top of the box body is provided with an opening, the box body is buried in the ground, the storage batteries are regularly arranged on the supporting frame and electrically connected with the solar panel, and the supporting frame is adjustably arranged at the position of the box body; the storage battery is arranged on the supporting frame, the supporting frame is installed in the box body, meanwhile, the box body is buried in the ground, the charging pile body is installed on the supporting frame, when the space occupied by the storage battery on the ground is reduced, stable installation of the charging pile body can be achieved through work of the power storage assembly, and meanwhile the installation mode of the charging pile is changed; and the installation efficiency is correspondingly improved.

The present invention discloses a translation conversion method for an epidemic prevention isolation hotel, which comprises the following steps: removing the middle partition wall between the epidemic prevention isolation rooms, or replacing it with a door opening; removing the indoor partition wall and the integrated bathroom to form a large space; removing the second-layer cement fiber board and the secondary beam, and then removing the main beam to form a two-layer high space; removing the pipelines and resetting the pipelines according to the transformation function to convert them into hotel suites. The present invention provides a translation conversion method for guest rooms in an epidemic prevention isolation hotel, which improves the convenience of the conversion of the epidemic prevention isolation rooms, facilitates the conversion of the epidemic prevention isolation rooms into regular hotel suites, and saves the transformation cost.

The invention provides a language model training method and device based on semantic analysis and a medium, and the method comprises the steps: carrying out the semantic analysis of a historical natural statement, so as to obtain a plurality of historical natural segmented words; performing sql language conversion on the historical natural segmented words to obtain historical initial sql language segmented words; if any historical natural statement meets the rewriting condition, determining the historical natural statement as a target historical natural statement; rewriting the historical initial sql language segmented words corresponding to the target historical natural statement to obtain historical rewritten sql language segmented words; and respectively inputting the plurality of historical initial sql language segmented words and the plurality of historical rewritten sql language segmented words corresponding to each target historical natural statement into an initial language model for training to obtain a target language model. By rewriting the plurality of historical initial sql language segmented words corresponding to the target historical natural statements meeting the rewriting conditions, the semantics of the obtained historical rewritten sql language segmented words are richer.

The utility model discloses a shield tunneling machine hobbing cutter shaft machining device, which belongs to the technical field of shield tunneling machine cutter machining, comprises a base, and is characterized in that two groups of sliding rails are arranged at the top of the base, a tailstock assembly and a clamping mechanism are arranged at the top of the base, and a driving mechanism is arranged between the tailstock assembly and the clamping mechanism; the tailstock assembly and the clamping mechanism are both slidably connected to the outer portion of the sliding rail, the clamping mechanism comprises a mounting frame, a servo motor is arranged on one side of the mounting frame, the output end of the servo motor penetrates through the mounting frame and is provided with a hydraulic chuck, and the tailstock assembly comprises a fixing frame; when the shield tunneling machine hob machining device is used, hob machining can be rapidly achieved, subsequent procedure conversion is more convenient, the machined shield tunneling machine hob does not need to be disassembled and assembled again, one-time full-automatic machining is completed, the datum conversion error problem caused by multi-procedure dispersed machining is effectively reduced, and the machining efficiency is improved. And the machining accuracy can be further ensured.