96 results about "One stage" patented technology

The invention relates to an upward horizontal layered filling mining method for a gently inclined-inclined thick ore body, which belongs to the field of underground mining methods, and comprises the following steps of: arranging a plurality of sections and a plurality of panels in one stage, arranging a plurality of chambers in the panels, and arranging a plurality of ore beds in each chamber; at the stage, a stage haulage roadway, a segmented stage connection roadway and a segmented haulage roadway are formed in the strike direction of the ore body, and a slope ramp is excavated upwards from the segmented stage connection roadway; the stage haulage roadway is communicated with the draw shaft connection roadway through a draw shaft; tunneling a stope connection roadway, a layered transportation roadway, a cutting roadway, a room air return roadway, a ventilation connection roadway and a pedestrian ventilation filling courtyard in a layered stoping mode from bottom to top to form a stage air return connection roadway of the previous stage; and stopping and filling the whole chamber. The technical problems that the mining preparation workload is large, mining safety and economical efficiency are difficult to consider, and the mining cost is high in a traditional mining method are solved.

The present application discloses an encoding method, a decoding method, and an apparatus. The encoding method comprises: on the basis of a first MCS, a first SNR, a first modulation order, or a first encoding rate, determining a bit rate of a component code corresponding to at least one stage in multi-stage encoding of information bits; on the basis of the bit rates of the component codes corresponding to respective stages in the multi-stage encoding, performing the multi-stage encoding on the information bits to obtain encoded bits; and outputting the encoded bits. Because the first MCS, the first SNR, the first modulation order, or the first encoding rate is a parameter related to a channel condition, in embodiments of the present application, the bit rates of the respective stages in the multi-stage encoding are dynamically configured in consideration of the channel condition, thereby reducing decoding complexity of the multi-stage encoding and also improving encoding / decoding performance of the multi-stage encoding.

To enable online programming learning while referring to appropriate information.SOLUTION: In a programming learning system including a first phase for selecting a question and a second phase for answering the selected question, presenting the answer and receiving a scoring result, a screen composed of one or more screen areas is displayed, each of the screen areas corresponds to each of the first stage to the N-th (an integer of two or more) stage, each stage has one or more small screens, the first phase is a phase for gradually selecting a question from the first stage to the M-th (an integer of one or more and less than N) stage, the screen area can display one screen belonging to a corresponding stage in an order determined in advance, the second phase is a phase for gradually generating a construct from the (M+1)-th stage to the N-th stage, the screen area can display a plurality of screens belonging to a corresponding stage, the screens that can be displayed are determined in advance according to a stage, and whether to display a screen that can be displayed is selectable.SELECTED DRAWING: Figure 7

A step-type inertial focusing microfluidic chip includes an arc-shaped channel having multiple stages connected in series. At least one stage of the arc-shaped channel is separated into a plurality of sub-channels distributed along a radial direction, one end of the multistage arc-shaped channel is provided with at least one fluid inlet and an inlet channel connecting the end of to the fluid inlet. The other end of the multistage arc-shaped channel is provided with a plurality of fluid outlets and a plurality of outlet channels connecting the other end to the fluid outlets. A radius of curvature of the arc-shaped channel is 2 to 50 mm. A cross-sectional width is 50-5000 microns, the cross-sectional height is 20-2000 microns, and a thickness of a sub-channel separation wall in the arc-shaped channel having the sub-channels is 10 to 1000 microns.

This invention provides a method for controlling the weight of a solid tire carcass and its application, relating to the field of tire carcass technology. The method includes the following steps: (a) weighing the base rubber after molding and comparing it to the standard weight of the base rubber to obtain a weight difference value; (b) correcting the amount of intermediate rubber based on the weight difference value from step (a), weighing the tire carcass after molding the intermediate rubber, and comparing it to the standard weight of the intermediate rubber tire carcass to obtain a weight difference value; (c) correcting the amount of tread rubber used in one stage based on the weight difference value from step (b), weighing the tire carcass after molding the first stage of tread rubber, and comparing it to the standard weight of the first stage of tread rubber tire carcass to obtain a weight difference value; (d) correcting the amount of tread rubber used in the second stage based on the weight difference value from step (c), and molding the tread rubber in two stages to obtain the finished tire carcass. This invention, through segmented weighing and multi-stage correction, gradually offsets the weight errors in each molding stage, achieving a tire carcass weight error of ±0.1 kg, far superior to existing weight control precision.

According to various embodiments, an electronic device for performing data mapping by performing an operation of a CNN model with low power comprises: a communication interface; a processor; and a memory including a dynamic random access memory (DRAM) in which multiple full multipliers for, when executed by the processor, causing the processor to perform multi-operations enabling simultaneously performing multiple operations, while performing at least one operation related to the CNN model, and a control bit and a 2:1 selector for deactivating a second multiplier that is not required for an operation other than multiple first multipliers required for the operation are stored, wherein the at least one operation comprises the operations of: in a case where at least one input data is acquired from an external electronic device through the communication interface, when a kernel size of the at least one input data is determined to have a value greater than or equal to a preset threshold size value, automatically dividing the kernel size of the at least one input data according to a set size; when the kernel size of the at least one input data has a value smaller than or equal to the threshold size value or is automatically divided, inputting the at least one input data to at least one stage pre-stored in the memory; determining the number of the first multipliers required for a multiplication-accumulation (MAC) operation of the at least one input data in the stage, and when the number of the first multipliers is determined to be equal to or less than the number of the full multipliers, driving the control bit and the 2:1 selector to deactivate the second multiplier; and receiving a global buffer including multiple weight values from each of multiple sub-processors through the communication interface, and inputting and mapping the at least one input data to the first multipliers.

The embodiment of the present application discloses a drying method for a clothing processing device, an electronic device, and a clothing processing device, which belong to the field of equipment control. The drying method includes controlling the start-up of the first fan and obtaining the first power of the first fan in at least one stage before the drying temperature rise stage, the drying temperature rise stage, and the drying dehumidification stage; and controlling the working state of the second fan according to the difference between the first power and the preset first power threshold to change the airflow condition in the drying duct. The embodiment of the present application has a technical effect of executing a cleaning strategy on the first filter, so that dander and / or water film can be cleaned, so that the subsequent drying process is not easily affected by dander and water film, the drying time is controlled, and the drying efficiency is guaranteed.

The invention discloses a stepped gradually-changing milk lining which comprises a sleeve integrally formed in an extending mode in the X direction of a longitudinal central axis, and a working cavity of the sleeve is used for containing animal nipples. The device is characterized in that a working cavity of the sleeve is divided into at least two stages of conical cavities step by step from top to bottom in the direction of the longitudinal central axis X, each stage of conical cavity is gradually narrowed from top to bottom, the taper angle of each stage of conical cavity is gradually reduced from top to bottom, and the surface of an animal nipple is attached to the inner wall of at least one stage of conical cavity in a sealed mode; the nipples with different diameter sections can be tightly attached to at least one stage of conical section through the taper decreasing design, the air leakage and blow-by risks are eliminated, the sealing performance is improved, the milking efficiency is improved, and breast health is improved.

The utility model relates to a signal source circuit and a conducted emission signal source, and the signal source circuit comprises an oscillation circuit which is used for generating an oscillation signal with a set frequency; the signal processing circuit is used for at least amplifying the signal amplitude of the oscillation signal to obtain a comb-shaped signal; the signal processing circuit comprises a first type of phase inverter and a second type of phase inverter, the input end of the first-class inverter is connected with the output end of the oscillating circuit, and the input end of the second-class inverter is connected with the output end of the first-class inverter. Oscillation signals are subjected to primary amplification through the first-class inverter, and the oscillation signals are subjected to secondary amplification through the second-class amplifier, so that signal amplitude amplification is realized, and meanwhile, the circuit structure is simplified. Moreover, the input end of the second type of inverter is connected with the output end of the first type of inverter, so that the oscillation signal returns to an initial state after two times of phase inversion, and the signal can maintain a stable oscillation state.

The utility model relates to a one-way valve type sealing piece and a straw cup, the one-way valve type sealing piece comprises a body, the body is provided with a mounting part, a sealing part and a sealing part, the protruding part is of a hollow shell wall structure with the top closed and is of an annular body with at least one stage, the diameter of the annular body is gradually reduced from bottom to top, and a water outlet hole is formed in a step of the annular body. The valve part is used for opening or closing the water outlet hole, and the valve part protrudes out of the top of the annular body and is provided with a valve plate with an expanded outer diameter; after the valve part and the protruding part are sequentially and downwards folded and compressed through the deformable folding marks, an installation part used for installing the suction pipe is formed, the suction pipe and the water outlet hole are communicated, a one-way liquid outlet channel is formed, and opening and closing of the channel are controlled by the valve plate so that sealing of the suction pipe can be achieved.

The invention discloses a multi-modal profiling flow field data acquisition device and a data acquisition method, a liquid flow maintaining box is fixed above a workbench of the data acquisition device, a profiling liquid flow table and a jet flow table which are coaxially and reversely connected are arranged in the liquid flow maintaining box, the profiling liquid flow table is located below the jet flow table, and a spiral blade is fixedly arranged on the upper surface of the profiling liquid flow table; at least one stage of flow channel is arranged in the jet flow table, each stage of flow channel extends to the circumferential direction of the jet flow table to form a jet flow opening, a hollow sliding rod is arranged in a center hole of the jet flow table, the upper end of the sliding rod is connected with a liquid supply device through a pipeline, the middle is dynamically sealed with the upper surface of the jet flow table, and the lower end is in threaded connection with the jet flow table. At least one group of liquid outlets are formed in the lower part of the sliding rod, a test plate is fixedly mounted in the liquid flow maintaining box, two groups of pressure sensors are arranged at the joints of the test plate and the left and right ends of the liquid flow maintaining box, and nine or eight distance measuring sensors are uniformly arranged on the test plate. The device can realize a multi-level and multi-mode jet scene.

A phototherapy device (200) is provided with a flash discharge tube (1), and a control device (220) that controls the light emission of the flash discharge tube (1). The flash discharge tube (1) is provided with: a light-transmissive envelope (10) in which an inert gas is enclosed; an anode (20); and a cathode (30). The envelope (10) includes: a quartz glass tube (11); a borosilicate glass material (12) that seals the anode (20); a borosilicate glass material (13) that seals the cathode (30); an intermediate glass material (14) that joins the quartz glass tube (11) and the borosilicate glass material (12); and an intermediate glass material (15) that joins the quartz glass tube (11) and the borosilicate glass material (13). Each of the intermediate glass materials (14, 15) is a glass material consisting of one stage or two stages. The tip portion of the cathode (30) is positioned inside the quartz glass tube (11). The cathode (30) has a sintered pellet (34). The sintered pellet (34) overlaps the intermediate glass material (15) in a side view.

The application provides a sinking cup mouth column foundation platform construction method, which comprises the following steps: installing a concrete support device on a platform concrete reinforcing bar to form an inner support formwork; pouring concrete to the top surface of the platform to complete the one-time pouring of the sinking cup mouth foundation platform; and disassembling the concrete support device to complete the pouring of the sinking cup mouth foundation platform. The concrete support device is installed on the platform concrete reinforcing bar to form the inner support formwork, which can cooperate with the platform formwork to pour the concrete, so that the sinking cup mouth foundation platform is poured once, that is, the pouring is realized in one stage. Compared with the two-stage pouring in the prior art, the construction period is saved, and the problem of the three-time pouring of the sinking cup mouth column foundation platform concrete in the prior art is solved, and the construction speed is improved.

The invention belongs to the technical field of construction equipment, and discloses a multi-pile-in-one stage state monitoring device which comprises a base and further comprises a lifting mechanism, the lifting mechanism is arranged on the outer wall of the top end of the base, and a transverse plate is arranged on the outer wall of the lifting mechanism; the monitor is arranged on the outer wall of the bottom end of the transverse plate through a mounting mechanism; the fixing ring is arranged outside the lifting mechanism through a spring, and the exterior of the lifting mechanism is fixedly connected with a gravity sensor; the alarm is arranged on the outer wall of the top end of the base; the stabilizing mechanism is arranged in the inner wall of the bottom end of the base; through cooperation of structures such as the movable rod and the fixed rod, the monitor can be driven to move upwards when the sleeve rod is treaded, at the moment, an operator manually supports the monitor to adjust the height of the monitor in a more labor-saving mode, height adjustment does not need to be conducted completely through hand force, and the working intensity is reduced.

The present invention relates to the field of rotary mechanical seals and discloses a micro centripetal turbine sealing device for use between a housing and a rotating shaft. The device comprises a micro centripetal turbine and a multi-stage sealing element arranged axially. A stage gap is formed between any two adjacent stages of the sealing element. A micro centripetal turbine is disposed within at least one stage gap. The micro centripetal turbine comprises a disk and a plurality of blades. The disk is used to be fixedly mounted on the outer side of the rotating shaft. The outer wall of the disk is a conical structure, and the outer diameter of the end of the disk close to the high-pressure side is larger than the outer diameter of the end of the disk away from the high-pressure side. All blades are disposed on the outer wall of the disk and arranged circumferentially. Each blade can expand and reduce the pressure of the airflow on the high-pressure side, and the end of the disk close to the high-pressure side can shield all blades. Compared with sealing using multi-stage sealing elements, the micro centripetal turbine sealing device can achieve sealing within a shorter axial spacing by utilizing the micro centripetal turbine in conjunction with the sealing element.

The hydraulic wrench with the counting function comprises a hydraulic wrench body, the hydraulic wrench body comprises a hydraulic rod, a mounting groove is formed in the inner wall of one side of the hydraulic wrench body, and a fixing seat is fixedly connected to the inner wall of one side of the mounting groove. One end of the fixed seat is sequentially provided with a fifth-stage turntable, a fourth-stage turntable, a third-stage turntable and a second-stage turntable from left to right, annular tooth grooves are formed in the circumferential inner walls of the first-stage turntable, the fifth-stage turntable, the fourth-stage turntable, the third-stage turntable and the second-stage turntable, inner discs are arranged in the fifth-stage turntable, the fourth-stage turntable, the third-stage turntable and the second-stage turntable, a ratchet wheel groove is formed in the circumferential inner wall of the first-stage turntable, and a ratchet wheel groove is formed in the circumferential inner wall of the second-stage turntable. The circumferential inner walls of the fifth-stage rotating disc, the fourth-stage rotating disc, the third-stage rotating disc, the second-stage rotating disc and the first-stage rotating disc are each provided with a shifting clamping groove, and a groove is formed in one side of the inner disc. The use times of the hydraulic wrench can be counted, so that a hydraulic handle is prevented from being used excessively, and the hydraulic handle can be maintained regularly.

This disclosure provides a cooling device for a scanning magnetic detection system, including a first support plate; a first gas supply assembly and a second gas supply assembly mounted on the upper side of the first support plate; a first enclosed chamber disposed on the lower side of the first support plate and surrounded by the first support plate, a first chassis opposite to the first support plate, and a first cylinder sealed between the first support plate and the first chassis; at least one stage of series cooling assembly disposed in the first enclosed chamber, each stage of series cooling assembly being configured to receive compressed cooling gas from the first gas supply assembly, and to cool the at least one stage of series cooling assembly step by step through the adiabatic expansion process of the compressed cooling gas; and a terminal cooling assembly disposed inside the first enclosed chamber and located below the last stage of series cooling assembly to further cool by utilizing the throttling process of circulating cooling gas from the second gas supply assembly.

The invention relates to a folding mechanism and a cart. The folding mechanism comprises a first connecting base, a second connecting base and a damping piece. The second connecting seat is connected to the first connecting seat and can rotate between a first rotating position and a second rotating position relative to the first connecting seat; the damping piece is arranged between the first connecting base and the second connecting base and connected to the first connecting base, when the second connecting base rotates relative to the first connecting base, the damping piece and the second connecting base rotate relatively, and in at least one stage of the relative rotation process of the second connecting base and the first connecting base, the damping piece is connected to the damping piece. At least one part of the damping piece in the circumferential direction abuts against the inner wall of the second connecting base in the circumferential direction. The folding mechanism has the advantage that the relative rotation speed of the second connecting base and the first connecting base can be reduced. The cart has the advantages that large-force collision between the structures of the cart body can be prevented, and the durability of the cart body is improved.

A shroud system for a gas turbine engine. The shroud system includes a support structure defining two stages. One shroud is disposed at one stage and another shroud is disposed at the other stage. A retention and positioning assembly is disposed on the support structure and positions and holds both shrouds relative to the support structure. A load transfer pin is located radially outward from each of the shrouds. A spring is coupled to the support structure and engages both load transfer pins. The spring applies forces on the load transfer pins toward their respective shroud. A retainer is coupled with the support structure and extends over both stages.

The invention provides a dust removal device and a filter cloth overhaul and maintenance method thereof.The dust removal device comprises a shell and at least one stage of filter unit, the filter unit comprises filter cloth, a first driving roller, a second driving roller and at least one supporting roller, and an opening allowing the filter cloth to penetrate through is formed in the shell wall of the shell; the first driving roller and the second driving roller are located outside the shell, the filter cloth bypasses the peripheral surface of the supporting roller, and the two ends of the filter cloth penetrate out of the shell through the opening and are wound on the first driving roller and the second driving roller respectively. Along with the rotation of the driving roller, the filter cloth located in the shell is pulled out of the shell for overhaul and maintenance, and the filter cloth located outside the shell is pulled into the shell to ensure normal operation of filtering and dust removal work, so that online overhaul and maintenance of the filter cloth are realized. At least two stages of filter units are further arranged, the shell is divided into a plurality of compartments by each stage of filter unit, and the damaged position of the filter cloth can be quickly checked by detecting the pressure difference between every two adjacent compartments.

A method for drying panels in a drying device including a first stage and a second stage, wherein the two stages each have levels and the panels are in each case laid on surfaces formed level-by-level and, in the respective levels of the two stages, are guided through the drying device, wherein the panels in the first stage are brought into contact with drying air of a high temperature and are dried, and in the second stage are dried with drying air of a less high temperature, is characterized in that at least in one of the two stages warm air is supplied to the panels from a means for recovering heat, wherein the means is arranged outside the two stages and wherein the warm air is supplied directly to the at least one stage.

A novel valley type dry ash storage yard slope anchoring platform structure comprises a soil slope, at least one stage of anchoring platform is arranged on the soil slope, each stage of anchoring platform is provided with an anchoring groove, and each anchoring groove is in a groove shape. An artificial anti-seepage lining layer is laid on the soil slope, and the artificial anti-seepage lining layer goes deep into the anchoring groove along the slope surface of the soil slope and the surface of the anchoring platform; and an anti-pulling anchor rod is arranged in the anchoring groove, and plain concrete is poured in the anchoring groove. Under the condition that the steep slope does not need to be cut in a large area, the storage capacity of the ash storage yard can be increased as much as possible, the ash storage life of the ash storage yard can be prolonged, meanwhile, the structure has the advantages of being easy and convenient to construct, low in manufacturing cost, practical, reliable and the like, and has good popularization value.

The present application relates to a rewinding mechanism and a rewinding machine, and relates to the field of rewinding machines. The rewinding mechanism includes a frame, two pressure plates, two drive plates, a drive assembly, and a rotating assembly. The two pressure plates are coaxially arranged, and the pressure plates have a conical surface that abuts against the inner edge of the end face of a paper tube. The end face of the pressure plate is fixed with a plurality of springs evenly arranged around the circumference, and the free end of the spring is provided with an embedded tooth. The outer circumferential surface of the drive plate is fixed with a protrusion, and the protrusion is located between two adjacent springs. The drive plate is coaxially fixed with a drive rod, and the drive rod slides axially with the pressure plate and is locked in rotation. The drive assembly has two stages of drive. When the drive assembly is driven in one stage, it will drive the pressure plate toward the other pressure plate. When the drive assembly is driven in the second stage, it will drive the drive rod and the drive plate to move axially. The outer edge of the end face of the drive plate abuts against the spring to force the spring to deform elastically, so that the embedded tooth is embedded in the inner wall of the paper tube. The rotating assembly is used to drive the pressure plate to rotate. The present application can improve the winding stability.

Heat exchange device, which includes: Fluid distribution / receiver units (110) configured to distribute or receive a fluid to be discharged or released; Liquid conduit plates (120) coupled to the liquid distributor / receiver units (110) and having conduits (114) for conveying liquid, which are configured in a plurality of plates such that at least one conduit (114) is branched into a plurality of conduits (114) based on a flow rate per unit area, and that each branched conduit (114) is again branched at at least one stage based on a flow rate per unit area; an intermediate conduit plate (140) whose conduits (114) are configured such that the conduits (114) are formed in a plurality of plates to correspond to the respective conduits (114) that are branched on a final stage of the fluid conduit plates (120), and that each conduit (114) is branched into a plurality of conduits (114) at least on one stage based on a flow rate per unit area; and a micro circuit board (130) whose conductors (114) are formed linearly in a plurality of boards to correspond to the respective conductors (114) that branch at a final stage of the intermediate circuit board (140), wherein the liquid distributor / receiver units (110), the liquid line plates (120) and the intermediate line plates (140) are symmetrically designed with respect to the micro line plate, wherein a diameter of at least one conduit (114) of the liquid conduit plates (120) is determined on the basis of a flow rate per unit area, wherein a diameter of each branched conduit (114) is determined on the basis of a flow rate per unit area, wherein a diameter of each conduit (114) of the micro conduit plate (130) is determined based on a flow rate per unit area, and wherein ignition points (146) are formed between the plates at the bottom end of the micro-conducting plate (130) or between plates of a bottom layer on the intermediate conducting plate (140), wherein the intermediate conducting plate (140) is positioned on a bottom side with respect to the micro-conducting plate (130).

The utility model provides a pin connection structure applied to a multistage lead screw, which comprises at least one stage lead screw, a first-stage nut, a first-stage sleeve and a second-stage sleeve, the first-stage lead screw is in threaded connection with the first-stage nut, the second-stage sleeve is sleeved on the outer side of the first-stage lead screw and the first-stage nut, and the second-stage sleeve is sleeved on the outer side of the second-stage nut. The first-stage sleeve is arranged on the outer side of the second-stage sleeve in a sleeving mode, the first-stage sleeve is connected with the second-stage sleeve through a key groove, and the first-stage nut is connected with the second-stage sleeve through a pin; when the first-stage lead screw rotates relative to the first-stage sleeve, the first-stage nut moves in the axial direction of the first-stage lead screw, and the first-stage nut pushes the second-stage sleeve to stretch out and draw back in the axial direction of the first-stage lead screw. According to the utility model, a pin structure is adopted to replace threaded connection, so that the problem of looseness under vibration or impact load is effectively avoided, and the connection stability is improved.

The invention discloses a production device suitable for cutting round mouths of medium borosilicate glass tubes with various lengths, which comprises a traction machine and a glass tube conveying belt, the traction machine is positioned at the inlet end of the glass tube conveying belt, and a glass tube transverse moving device is arranged above the glass tube conveying belt. The glass tube transverse moving device is divided into a glass tube left transverse moving device and a glass tube right transverse moving device; at least one level of glass tube left transverse moving device is arranged in the conveying direction of the glass tube conveying belt, and glass tubes on the glass tube conveying belt move towards the left side of the glass tube conveying belt under the action of the glass tube left transverse moving device; at least one level of glass tube right transverse moving device is arranged in the conveying direction of the glass tube conveying belt, and glass tubes on the glass tube conveying belt move towards the right side of the glass tube conveying belt under the action of the glass tube right transverse moving device. The end parts of glass tubes with different lengths can be transversely moved to the left side and the right side of a production line for round mouth operation, and the round mouth device can adapt to production of the glass tubes with different lengths, so that the yield of the glass tubes is improved, and the production cost is reduced.

Methods of fabricating orthodontic alignment devices. First forces may be applied to teeth of a digital model to simulate movement of the teeth from one stage of an ordered sequence of stages to a next stage. The first forces may include one or more unwanted forces that move one or more teeth of the digital model in an unwanted direction. One or more forces may be applied to the palate of the digital model that results in second forces applied to the teeth of the digital model to replace or offset the one or more unwanted forces. A shape for the orthodontic alignment device may be determined based on the first and second forces applied to the teeth and in combination with the one or more forces applied to the palate of the digital model. An orthodontic alignment device may be fabricated based on the determined shape.

A print bed assembly (200) for an additive manufacturing system (100) comprises a stage (202), a carrier plate (204) extending in a first direction (A1), a build plate (220) removably arranged on the carrier plate, and at least one rear clip (222) that detachably couples the build plate (220) with the carrier plate. The print bed assembly comprises a slide body (228) and at least one front clip (240) arranged to detachably couple the build plate with the carrier plate. In an embodiment, the print bed assembly comprises at least one handle (246) and at least one push element (250) arranged to move the build plate relative to the carrier plate in the first direction.

The invention discloses a carrier rocket and an attitude angle control method thereof. The carrier rocket comprises a fairing; the N stages of cabin sections are arranged at the rear end of the fairing, each stage of cabin section is provided with an engine, and the engine is configured to provide pushing force for the carrier rocket in the axial direction of the carrier rocket; one end of the mass center adjusting assembly is connected with a cabin section body of at least one cabin section from the second-stage cabin section to the Nth-stage cabin section, and the other end of the mass center adjusting assembly is connected with an engine corresponding to the at least one cabin section; the mass center adjusting assembly is configured to adjust the mass center position of the engine corresponding to the mass center adjusting assembly. And the controller is configured to control the mass center adjusting assembly to adjust the mass center position of the corresponding engine so as to control the flight attitude angle of the carrier rocket by adjusting the mass center position of the carrier rocket. According to the technical scheme, the attitude control requirement of a large carrier rocket can be met.

The present disclosure is a kind of buffer multistage servo hydraulic cylinder, at least including two hydraulic components, with: at least including one stage cylinder (11), two-stage cylinder (12), oil storage device (13) hydraulic cylinder body (1), two-stage cylinder (12) is arranged in one stage cylinder (11) and is communicated with it, oil storage device (13) is arranged in one stage cylinder (11) one end and is communicated with it;Servo motor (2) is arranged in one side of hydraulic cylinder body (1) and is connected with hydraulic cylinder body (1) by connecting flange (21);Oil pump (3) is arranged in one end of servo motor (2) and is connected with servo motor (2) by shaft coupling (31);At least a part of buffer device (4) is arranged in hydraulic cylinder body (1) and is located in one stage cylinder (11) one end;The buffer multistage servo hydraulic cylinder provided by the application can be used in multiple pressure chambers, high-precision position control and speed regulation are realized by servo motor, and the hydraulic cylinder is protected by buffer device.