168results about How to "High clarity" patented technology

The invention belongs to the technical field of coal bed gas exploitation fracturing control, and particularly discloses a coal bed gas exploitation staged fracturing intelligent monitoring control system which collects rock samples from a target coal bed, conducts microstructure detection on the collected rock samples, removes the rock samples with natural fractures, and obtains the coal bed gas exploitation staged fracturing intelligent monitoring control system. Then a servo motor is used for applying the same stress in different directions to the rock sample for fracturing simulation, crack propagation monitoring is conducted after fracturing simulation, and therefore the crack propagation direction of the rock sample is associated with the stress applying direction to obtain crack propagation dominant microstructure distribution characteristics corresponding to the rock sample; the understanding of the crack propagation mechanism is deepened to the greatest extent, the definition of the crack propagation direction is increased, the crack propagation effect is optimized when fracturing operation is carried out in the coal seam without natural cracks, and the accuracy and effectiveness of fracturing are improved.

According to the multi-object-distance, low-distortion and high-definition machine vision lens and the camera device provided by the invention, the lens comprises an optical system, and the optical system comprises a first lens group, an aperture diaphragm and a second lens group which are arranged on the same optical axis from an object space to an image space; the first lens group comprises a first lens, a second lens, a third lens and a fourth lens which are arranged on the same optical axis from the object side to the image side, and the second lens group comprises a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens which are arranged on the same optical axis from the object side to the image side. According to the invention, the imaging effects of high image quality, high accuracy and low distortion can be presented under the condition of satisfying multiple object distances.

The invention discloses a water quality analysis and detection device and method, and relates to the technical field of water quality detection.The water quality analysis and detection device comprises a bottom plate, a supporting plate is fixedly connected to the upper portion of the bottom plate, a first water pump is movably connected to the end, away from the bottom plate, of the supporting plate, and a double-shaft water pump is movably connected to the side, close to the first water pump, of the bottom plate; the first water pump and the double-shaft water pump are jointly provided with a water quality filtering centrifugal assembly, rotation of a first rotating shaft can drive a scraping rod, a stirring rod and a flow limiting plate to rotate at the same time, starting of the double-shaft water pump can drive a second rotating shaft and a centrifugal machine to rotate at a constant speed in the horizontal direction, and a water quality extracting and detecting assembly is arranged on the storage barrel; the detection disc rotates at a constant speed and makes contact with the end, away from the bottom plate, of the suction pipe, impurities such as suspended solids and particulate matter in a water sample can be effectively removed by arranging the water quality filtering centrifugal assembly and the filtering plate, the clarity and purity of the water sample are improved, and therefore the accuracy and reliability of follow-up detection are ensured.

The invention relates to the technical field of inspection robots, and discloses an underground coal mine robot inspection man-machine interaction platform which comprises a height adjusting assembly, the bottom end of the height adjusting assembly is installed at the top of an anti-explosion machine body, a buffering assembly is installed at the top of the height adjusting assembly and used for relieving impact force of falling objects on the upper portion, and an object receiving platform is arranged at the top of the buffering assembly and used for receiving objects on the object receiving platform. A matrix sensor module is arranged at the top of the object receiving platform and used for accurately weighing the weight change of the falling object and judging the condition of the falling object in real time, so that the robot conducts environment monitoring and dynamic adjustment. By integrating a height adjusting assembly, a matrix sensor module, a buffer assembly and a dust collection cleaning system, the problems of falling object impact, dust pollution and equipment cleaning faced by the underground coal mine robot in the inspection process are solved, and the adaptability, stability and inspection efficiency of the robot in a complex environment are improved; and the cleanliness and accuracy of the equipment are ensured, so that the inspection process and data acquisition are optimized.

The invention provides an intracavity gas self-circulation filtering device for laparoscopic surgery, which comprises a first filtering part (1) provided with a first filtering part gas inlet (102) and a first filtering part gas outlet (103), and the first filtering part gas inlet is communicated with the abdominal cavity of a human body; the power part (2) is connected with the first filtering part and is provided with a power part air inlet (203) and a power part air outlet (202), the power part air inlet is communicated with the first filtering part through the first filtering part air outlet, and the power part air outlet is communicated with the human body abdominal cavity; a housing (5) having an opening and an internal space communicating with the outside and accommodating the first filter part and the power part in the internal space; and the at least one second filtering part (1005) is communicated with at least one of the first filtering part air inlet and the power part air outlet. The technical scheme provided by the invention has the advantages of avoiding pollution and being high in durability.

The invention provides a stabilizer for a compound amino acid injection, the compound amino acid injection containing the stabilizer and a preparation method of the compound amino acid injection. The stabilizer is composed of cysteine and cystine according to a weight ratio of (5-80): 1. The compound amino acid injection comprises the stabilizer and amino acid components. The preparation method of the compound amino acid injection comprises the following steps: preparing a first amino acid solution under a nitrogen protection condition; adjusting the pH value of the first amino acid solution to be neutral, adding cysteine and cystine, dissolving, and adding the balance of water for injection to obtain a second amino acid solution; and sterilizing the second amino acid solution to obtain the compound amino acid injection. According to the invention, cysteine and cystine are adopted as stabilizers of the compound amino acid injection, so that the purpose of stabilizing other amino acid impurities is achieved, and the safety is high.

The invention discloses inner-layer quartz sand for a long-service-life single-crystal crucible and a preparation method and application of the inner-layer quartz sand, and one or two of 1-15 ppm of bismuth oxide and antimony trioxide are uniformly doped into the quartz sand through a high-temperature acid doping process. As the antimony oxide and the bismuth oxide are doped in the quartz sand, the viscosity of quartz melt can be reduced, overflow of a large amount of gas generated in the quartz sand melting process is facilitated, and the content of microbubbles in the inner layer of the quartz crucible is reduced, so that the density and the temperature resistance of the inner layer of the quartz crucible are improved, the defects caused by bubbles are reduced, and the service life of the crucible is prolonged.

The utility model discloses an internet weak current cable intelligent control box relates to control box technical field, including control box main part, installation module and bunched wire arrangement device, the front end of control box main part is equipped with the box door through the hinge, through the mutual matching of closing lever and wire arrangement groove, the high-efficient arrangement of cable is realized, and the control box main part is equipped with the installation module and the bunched wire arrangement device. The cable disorder phenomenon is avoided, and the tidiness and the orderliness in the control box are remarkably improved; independent classification of the cables is also supported, so that different types of cables can be clearly distinguished, rapid identification and management by later maintenance personnel are facilitated, and the fault risk caused by cable confusion is reduced; a sliding connection system composed of the connection sliding blocks and the connection sliding rails enables the positions of the cables to be flexibly adjusted, and connection of newly-added cables or re-arrangement of existing cables are facilitated. Therefore, the whole device has the beneficial effects of arrangement and classification, rapid maintenance, flexible position adjustment and the like, and a practical solution is provided for cable management.

The utility model discloses a rollator bag, which belongs to the technical field of rollator and comprises a rollator body, a frame is arranged at the bottom end of the rollator body, a bag body is arranged on one side of the frame, positioning seats are arranged on two sides of the bag body, insertion rods are arranged in the positioning seats, and plastic elastic pieces are arranged on one sides of the upper ends of the insertion rods. Velcro tapes are arranged on the surfaces of the inserting rods, and an adjusting and separating assembly is arranged in the vehicle bag body. The hook-and-loop fastener is connected to the upper end of the frame in a sleeved mode to install the rollator bag, installation convenience is improved, meanwhile, the plastic elastic piece can be pressed to take down the inserting rod and the hook-and-loop fastener to be replaced, the use stability of the hook-and-loop fastener is guaranteed, and the installation stability of the rollator bag is improved. Meanwhile, an adjusting and separating assembly is arranged, so that the internal space of the vehicle bag can be conveniently separated, the utilization effect of the internal space of the bag is improved, classified placement of articles is guaranteed, and the placement orderliness is improved.

The application provides a cold-dissolved liver-protecting medicinal tea and a preparation method and application thereof. The preparation raw materials of the cold-dissolved liver-protecting medicinal tea include green tea, rattan tea, ginseng, lotus leaves, mulberries and hawthorn. The preparation method comprises the steps of grouping extraction and spray drying of the preparation raw materials. The air inlet temperature of the spray drying is 130-150 DEG C, and the air outlet temperature is 75-85 DEG C. The grouping extraction comprises jointly extracting the ginseng, mulberries and hawthorn, and jointly extracting the green tea, rattan tea and lotus leaves in the presence of cyclodextrin. The cyclodextrin comprises one or more of beta-cyclodextrin and hydroxypropyl-beta-cyclodextrin. The cold-dissolved liver-protecting medicinal tea is derived from natural plants, has a simple formula, is safe and effective, is convenient to use, and can retain active ingredients to the greatest extent.

The invention discloses an automatic generation method and device of a smart contract, and relates to the technical field of blockchains, and the method comprises the steps: inputting a rule of a blockchain smart contract through a graphical interface, converting the rule into data in a JSON format, analyzing the data in the JSON format, constructing a knowledge graph, and generating a knowledge graph; the method comprises the following steps: modeling attributes and relationships in a rule, training a model, and according to the model, mapping nodes and edges in a knowledge graph to different parts and functions of a contract, converting the attributes and relationships in the knowledge graph into codes of a block chain smart contract, compiling the codes into byte codes, and deploying the byte codes to a block chain network. And creating an executable smart contract instance. Through the method, automatic generation of the smart contract can be realized, manpower, material resources and time cost are saved, the development efficiency and quality of the smart contract are improved, semantic analysis and reasoning are performed by using the knowledge graph, and the smart contract code more in line with the intention and scene of the user is generated.

This invention relates to the field of pharmaceutical technology and discloses a method for improving the clarity and color of oxybuprocaine hydrochloride solution, comprising the following steps: S110: Oxoplasmin is added to a reactor, and an organic solvent is added while stirring to control the reaction system at 0-10°C; an antioxidant is added. S120: Hydrochloric acid is slowly added in batches to the temperature-controlled reaction system. After the addition is complete, the temperature is controlled at 0-10°C for 2-4 hours, then the temperature is raised to 40-50°C for 2-4 hours, and activated carbon is added. S130: The mixture is filtered while hot, and solvent is slowly added dropwise to the filtrate until the product precipitates. After slurrying at 25-35°C for 2 hours, the mixture is filtered, and the filter cake is vacuum dried in a vacuum drying oven at 40-50°C for 12-16 hours to obtain oxybuprocaine hydrochloride. This invention provides a novel method for obtaining oxybuprocaine hydrochloride by adding antioxidants and activated carbon in the salt formation step. The clarity and color of the resulting product solution meet pharmacopoeia requirements.

This invention relates to the field of wastewater treatment technology, and in particular to a microfiltration wastewater treatment device for industrial wastewater turbidity removal. The device includes a treatment cylinder and an L-shaped wastewater pipe installed at the top of the treatment cylinder. A swinging filter assembly is installed at the top inner part of the treatment cylinder. The swinging filter assembly shakes and filters the wastewater. The swinging filter cartridge within the swinging filter assembly swings and moves the filtered impurities. During the swinging process, the swinging filter assembly throws out the wastewater while simultaneously causing the filtered impurities to flow. This invention achieves dynamic separation through swinging filtration, combined with real-time self-cleaning via rotating scraping. The filter cartridge is automatically cleaned by a torsional brush assembly. A fixed filter cartridge with a blocking filter assembly effectively blocks filtration and also possesses a self-cleaning function. This allows for the simultaneous and continuous execution of filtration and cleaning processes, significantly improving wastewater turbidity removal efficiency and the stability and durability of the equipment operation.

The present application relates to a kind of high stability water-in-oil PDRN emulsion and its preparation method, belong to the field of biotechnology;The preparation method includes the following steps: (1) PDRN enzymolysis: PDRN is added in DNaseI, supplement metal ion activates enzyme, when fragment enrichment shows <800bp, terminate enzymolysis reaction, obtain crude enzymolysis solution;(2) moderate molecular weight screening: pressurized ultrafiltration crude enzymolysis solution with ultrafiltration membrane, and screen out the target fragment of the permeate of molecular weight in 120-500bp;(3) water phase system optimization: 1,3-propanediol and ubiquinol are added in the permeate;(4) semi-continuous feeding gradient emulsification.The present application is by precise control PDRN molecular weight to take into account stability and solubility, optimize water phase component to realize system viscosity and transparency double standard, cooperate gradient emulsification to guarantee water-in-oil system stability, significantly improve product comprehensive quality and application value, with outstanding technical advantages.

The invention belongs to the technical field of plant beverage processing, and particularly relates to a gingko, dendrobium officinale and ginseng plant beverage crushing, mixing and preparing device which comprises a mixing and preparing machine, a universal pulverizer, an ultrafine pulverizer, a freezing pulverizer and a high-pressure homogenizer, and the mixing and preparing machine comprises a material cavity, a feeding opening, a discharging opening and a stirring mechanism; the preparation method of the mixing preparation machine comprises the following preparation steps: S1, raw material pretreatment: selecting ginkgo leaves, fresh dendrobium officinale strips and ginseng rhizomes which are free of mildew and diseases and insect pests, cleaning the ginkgo leaves, drying the ginkgo leaves with hot air, removing fibrous roots from the fresh dendrobium officinale strips, cutting the fresh dendrobium officinale strips into long sections, peeling the ginseng rhizomes, and cutting the peeled ginseng rhizomes into long slices; s2, graded crushing is conducted, specifically, the pretreated ginkgo leaves are put into a universal pulverizer to be pulverized and then transferred into an ultrafine pulverizer to be further pulverized into fine particles, and the device solves the problems that when the ginkgo, dendrobium officinale and ginseng plant beverage is prepared through crushing and mixing at present, the mixing effect is poor, and the stability and taste of the beverage are directly affected.

The invention discloses a fenugreek seed extract preparation method, which comprises: taking fenugreek seeds, crushing to obtain a fenugreek seed crushing material, adding ethanol to the fenugreek seed crushing material, and pre-soaking to obtain a first mixture; performing pulsed electric field treatment on the first mixture to obtain a second mixture; the second mixture is put into an extraction tank for extraction, and an extracting solution is obtained; the extracting solution is firstly subjected to microfiltration through a ceramic membrane and then subjected to ultrafiltration through an organic membrane, and dialysate is obtained; concentrating the dialysate through an organic nanofiltration membrane to obtain a concentrated solution; adding gamma-cyclodextrin into the concentrated solution to carry out inclusion treatment, so as to obtain an inclusion solution; and carrying out spray drying treatment on the inclusion liquid to obtain the fenugreek seed extract. According to the method, the production cycle is shortened, the production cost is reduced, the content of 4-hydroxyisoleucine is increased, the stability of 4-hydroxyisoleucine is enhanced, and the redissolved clarity and bitter taste of the extract are improved.

The invention discloses an injection analgesic composition and a preparation method thereof, and belongs to the technical field of medicines. The pain relieving composition for injection is prepared from lornoxicam, tromethamine, edetate disodium, an alcohol excipient and amino acid. In the preparation process of the composition, the tert-butyl alcohol is added, so that the problem of long dissolving time of the lornoxicam is solved, after the tert-butyl alcohol is added, the dissolving time of the lornoxicam is shortened from about 100 minutes to 45 minutes or below, and the problem of solution turbidity does not occur after the lornoxicam is placed for 2 hours. In addition, the glycine is added, so that the problem of poor clarity of a solution after the composition is redissolved is solved, and the clarity of the solution after the composition is redissolved is equivalent to that of water.

The present invention relates to the technical field of printing machines, specifically a printing machine for degradable food plastic packaging bags, including a machine frame and a bracket, the number of the brackets is two groups, and they are fixedly installed at the left and right positions of the outer surface of the lower end of the machine frame, the machine frame is designed in a round-shaped structure, and a limit assembly is arranged at the lower end position inside the machine frame, a printing roller is installed inside the limit assembly, and the middle area of ​​the upper and lower outer surfaces of the printing roller is a printing area, an oil outlet cylinder is movably installed inside the machine frame near the upper end position of the printing roller, and a driving assembly is passed between the printing roller and the oil outlet cylinder; the limit assembly includes a V-shaped frame and a vertical rod, and the V-shaped frame is horizontally placed inside the machine frame, and the number of the vertical rods is four. The present invention can timely and evenly add ink to the surface of the printing roller, and reduce the reduction of printing quality due to ink agglomeration, can adapt to the printing of packaging bags of different thicknesses, and reduce the situation of film damage caused by heavy pressure printing due to hollow roll film.

The present invention relates to a storage method for concentrated onion juice, comprising: placing the concentrated onion juice in a plurality of storage tanks, setting a detection cycle of the concentrated onion juice; detecting the internal temperature of the storage tank, drawing a temperature change curve, comparing the temperature value with a preset internal temperature, and adjusting the temperature expression parameter of the temperature change curve; calculating the integral value of the temperature change curve and the preset internal temperature within a unit detection time, and adjusting the detection cycle accordingly according to the integral value; detecting the light transmittance and soluble solid content of the concentrated onion juice, comparing them with standard values, making a grade judgment on the storage state of the concentrated onion juice, and adjusting the detection cycle accordingly; detecting the storage time of the concentrated onion juice, comparing it with the preset storage time, and calculating the adjusted detection cycle. The present invention makes the storage detection of onion juice more intelligent.

The invention relates to the technical field of vehicles, and provides a speed control method, device and equipment for a windscreen wiper and a storage medium, and the method comprises the steps that a first windscreen wiper speed correction value is obtained according to windscreen wiper driving resistance of a previous speed control period and windscreen wiper driving resistance of a current speed control period; according to the rainfall parameter of the previous speed control period and the rainfall parameter of the current speed control period, a second windscreen wiper speed correction value is obtained; according to the first target control speed and the actual control speed of the last control period, a third windscreen wiper speed correction value is obtained; according to the first windscreen wiper speed correction value, the second windscreen wiper speed correction value and the third windscreen wiper speed correction value, the first target control speed of the previous control period is corrected, and the first target control speed of the current control period is obtained; and controlling the speed of the windscreen wiper based on the first target control speed of the current control period. The problem that the visual field is poor due to the fact that rainwater on a windshield cannot be well removed can be solved.

The invention discloses a rural household domestic sewage treatment device, comprising a manure inlet pipe, a septic unit, a coarse filter unit and a tower-type biological filter unit, wherein the septic unit, the coarse filter unit and the tower-type biological filter unit are sequentially connected through a pipeline, and the discharge port of the manure inlet pipe is connected to the inside of the septic unit. The invention has the beneficial effects of stable operation, being unaffected by seasonal temperature changes, strong impact resistance, low energy consumption (60 yuan / year), low operation failure rate, unattended operation and simple maintenance.

The application discloses an automatic dehydration device and method for electrochemical descaling of circulating water, and relates to the technical field of electrochemical water treatment. The dehydration device comprises a sludge adjusting and storing pool, which is used for pre-dehydration treatment of slurry generated by descaling of an electrochemical device. The sludge adjusting and storing pool comprises a pool body, a stirring driving element and a stirring element. The stirring element is arranged in the pool body and comprises a main shaft, a scraper, an extrusion column and an extrusion reciprocating assembly. The output end of the stirring driving element is in transmission connection with the main shaft. The lower end of the main shaft is provided with the scraper, which is arched towards the rear of the rotating direction of the scraper. The extrusion column is located at the rear side of the scraper. The extrusion reciprocating assembly is used for driving the extrusion column to move reciprocally. The dehydration equipment and a sludge pump are arranged. The sludge pump is used for conveying sludge at the bottom of the sludge adjusting and storing pool to the dehydration equipment. The dehydration equipment is used for secondary dehydration treatment of the sludge. The application realizes staged dehydration of the slurry. In the pre-dehydration treatment, the cooperation of the scraper and the extrusion column can effectively prevent the sludge from being hardened.

The utility model relates to the technical field of territorial space planning, in particular to a territorial space planning topographic survey device which comprises a man-machine body. The connecting assembly is located on the unmanned aerial vehicle body and provided with a cleaning part; the protection assembly is located on the connecting assembly and used for protecting the internal placing assembly; the measurer body is arranged on the placing assembly; the cleaning piece is connected to the containing assembly and used for cleaning the containing assembly. The protective cover is arranged in the protective shell, the protective cover is provided with the installation groove, the installation groove is used for containing the containing box, the measurer body is arranged in the containing box, the measurer body is protected and used, the cleaning piece is arranged on the protective shell, the cleaning sleeve is used with the glass scraping cleaning brush arranged on the inner wall, and the glass cover is cleaned and used. In the cleaning process, the protective shell is cleaned and used at the same time, the use range of the cleaning piece is conveniently increased, the measurement picture clearness is conveniently improved, and the territorial space planning topographic measurement efficiency is improved.

The invention discloses a multi-person picture synthesis method and device, equipment and a medium. The method comprises the following steps: splicing original images at multiple angles to obtain a panoramic image of a current target area; real-time tracking is carried out according to all face position information in the current frame, sound source information is collected synchronously, and a current spokesman in the target area is determined; and generating a multi-person synthetic picture according to the real-time motion picture of the current spokesman and the real-time motion pictures of other people. Multi-angle images are collected for feature point matching and image splicing, a high-quality panoramic image is generated, wide-area visual angle coverage is achieved, a more detailed image is obtained, all face positions are locked, corresponding sound source information is collected, a current spokesman is recognized, a multi-person synthetic picture which highlights the current spokesman and gives consideration to other people is generated, and the multi-person synthetic picture is obtained. The integrity of the panoramic information is guaranteed, meanwhile, the key content is clearly presented, the problems that the visual angle is limited and information is overloaded are solved, and the communication efficiency and watching experience of a teleconference are improved.

The present application relates to a kind of traditional Chinese medicinal materials press and pressing method, including connecting frame, the inside of connecting frame is equipped with auxiliary deslagging mechanism, the side of connecting frame is equipped with auxiliary filtering mechanism;In the present application, by setting auxiliary deslagging mechanism, after entering the pressing box, traditional Chinese medicine is driven gear box by second motor link rod operation, to drive two stirring rods to rotate, realize the uniform pressing of medicinal material, ensure the analysis of liquid medicine, traditional Chinese medicinal materials press and pressing method in the process that liquid medicine and dregs are separated, first motor link makes screen continuously rotate, dregs rotate in the screen of traditional Chinese medicinal materials press and pressing method, scraper is attached to the surface of screen, can effectively scrape off and concentrate to the residue collection groove in the bottom of deslagging tank, facilitate user to take out residue in time and carry out secondary pressing, the structure not only improves the juice yield of traditional Chinese medicinal materials, but also prevents residue from being accumulated on screen to cause blockage.

The present application discloses a bullet screen display method, device and electronic device, belonging to the field of multimedia display technology. The bullet screen display method includes: receiving a first input of a user to a first bullet screen, and the first bullet screen has at least one reply bullet screen; in response to the first input, displaying at least one second bullet screen in a target area of ​​a first-level sub-node level of the first bullet screen, and the second bullet screen is a reply bullet screen of the first bullet screen.

The invention relates to the technical field of electronic products, in particular to a multi-dimensional sensor fused electronic product all-dimensional quality detection method, and solves the problems that in the prior art, a complicated electronic product possibly needs higher-grade detection equipment and method to ensure the quality and performance of the electronic product, and the detection difficulty is gradually increased. The invention discloses a multi-dimensional sensor fused electronic product comprehensive quality detection method. The method comprises a preparation stage, a data acquisition and processing stage, a data analysis and evaluation stage, an environmental adaptability test stage, a safety and reliability evaluation stage, a comprehensive evaluation and report stage and a detection target determination stage. According to the method, clear and specific operation guidance is provided for detection personnel through definition enhancement and detailed steps, so that each step has a clear target and a clear method, fuzziness and uncertainty in operation are reduced, efficiency is improved, the detection personnel can master a detection process more quickly through detailed step guidance, learning and exploration time is shortened, and detection efficiency is improved. Therefore, the working efficiency is improved.

The utility model relates to the technical field of sand table models, and discloses a sand table model waterway simulation circulating system which comprises a sand table, a water tank is arranged in the sand table, the bottom of the sand table is fixedly connected with a water pump, the output end of the water pump is fixedly connected with a first connecting pipe, and the output end of the water pump is fixedly connected with a second connecting pipe. The water pump and one end of the second connecting pipe are fixedly connected to the inner wall of the water tank, a filtering assembly is arranged on the inner wall of the water tank and comprises a filtering cylinder, the filtering cylinder is located on the inner wall of the water tank, a fixing support is fixedly connected to the top of the sand table, and two rotating shafts are rotationally connected to the interior of the fixing support. According to the water purifier, impurities in water are filtered through the filter cartridge, the impurities on the outer wall of the filter cartridge are scraped off through rotation of the filter cartridge and the scraping plate, then the water in the impurities is separated through the filter screen, the good filtering effect on water flow is achieved, and the clear effect of the water flow is enhanced.

The utility model relates to the technical field of loudspeakers, and discloses an ultrathin loudspeaker with an elastic material, which comprises a base, a magnet is arranged at the central position of the top of the base, a magnetic conductive sheet is arranged at the top of the magnet, a vibration coil is arranged on the outer diameter of the magnet, an elastic ring is arranged at the top of the vibration coil, and the elastic ring is made of elastic material. An elastic ring is arranged at the top of the base, a vibrating membrane is arranged at the top of the elastic ring, protective plates which are uniformly distributed are fixedly connected to the surface of the base, a supporting frame is fixedly connected to the tops of the protective plates, a dust cover is arranged on the inner diameter of the supporting frame, and two sub-buckles are fixedly connected to the bottom of the dust cover. According to the utility model, through the dustproof cover, the vibration coil, the vibration membrane, the son buckle, the mother buckle and the magnetic conductive sheet, the magnet is used for guiding a magnetic field and improving the effect of sound clearness, then the magnetic conductive sheet is used for improving the magnetic field and the uniformity, and the vibration coil is made of a light material, so that the sound vibrates.

The application provides a preparation method of low-solid-content astragalus membranaceus fine oral liquid. The method introduces a chitosan-diatomite composite flocculating agent on the basis of a traditional percolation process, removes macromolecular impurities in the percolation liquid by optimizing flocculation process conditions, and achieves the purposes of greatly reducing the solid content, improving the retention rate of core pharmacodynamic components, and shortening the production cycle.