89results about How to "Neatly distributed" patented technology

The invention relates to a method for manufacturing a super-thin electrolytic copper foil. (1) An electrolyte contains 90-130g / L copper, 130-150g / L sulphuric acid. (2) The electrolyte is heated 55-66 DEG. C, 5-12 parts dithio-bis-propylene sulfonic acid sodium salt, 0.1-0.9 parts urinary sulfur, 0.9-2.2 parts 2-mercaptobenzothiazole and 20-50 parts polyethyleneglycol molecular weight 400 by weight ratio are added into the electrolyte in 1000 volume part per hour for entering an anode groove after being mixing well. (3) In an electric field, the current density is 65-75A / dm(2) for reacting and obtaining the super-thin electrolytic copper foil. The super-thin electrolytic copper foil crystal is tiny and uniform, difference of thickness uniform is less than 0.3 mum, Ra is less than 0.2 mum, Rz is not larger than 2.0 mum, tensile strength is in between 380-420 N / mm(2). A lithium battery with big capacity manufactured by the super-thin electrolytic copper foil has long cycle life of charge / discharge, and is not easy rupture during over charge.

The invention relates to a method for synthesizing high-activity high molecular weight polyether polyol, belong to the field of chemical industry. The invention solves the technical problem of providing a method for synthesizing high-activity high molecular weight polyether polyol with uniform and transparent appearance. The invention has the technical scheme that the method for synthesizing high-activity high molecular weight polyether polyol comprises the following steps of: adopting a polyol compound as an initiating agent, adding a catalyst and an epoxy compound into a reaction system by steps for multiple times at the pressure of 0.1-0.5 MPa and the temperature of 60-140 DEG C, and carrying out polymerization in a high-speed stirring device. The polyether polyol prepared by using the method provided by the invention has high molecular weight, regular distribution and relatively low viscosity. Compared with general soft-foam high elastic polyether polyol on the market, the polyether polyol has higher molecular weight, higher reaction activity and more regular molecular weight distribution.

The present invention discloses a mining- machine- based slowly inclined thin ore vein mechanized continuous mining method, a middle-section tape transport lane is arranged along an ore body, false inclination uphill is tunneled at intervals of a certain distance; a continuous rib pillar and a top pillar or a bottom pillar are arranged between adjacent back- mining units; accurate mining cutting is started from the lower middle section tape transport lane, a mining machine passes, from the back- mining unit edge position, through the top pillar or the bottom pillar for tunneling left and right false inclination uphill to the upper middle section tape transport lane; back- mining is started from the position of the tape transport lane uphill from the right side, the ore body is back mined by the mining machine to left side uphill, the mining machine is in no load, and descends along the left false inclination uphill to the bottom of the back- mining units, the ore body is back mined by the mining machine from left side uphill position to right side uphill, then the mining machine is in no load, and ascends from the right side uphill to the position near the tape transport lane, the mining is performed in the anti-clockwise direction circulation way, a central position reserved ore pillar is left; ores are loaded onto a belt by a carry-scraper for conveying to a ground surface main ore bin. The conveying is easy, work security is high, back- mining efficiency is high, and production capacity is large.

The invention provides a method for building and managing a famous tea mechanical plucking tea garden, and belongs to the technical field of plant cultivation. The method is characterized by mainly comprising the steps of tea garden selecting, tea plant variety selecting, planting, tree crown cultivating and pruning, mechanical plucking period and remaining, maintaining of plucked tea tree crowns and the like, wherein frames of tea trees of the built tea garden are clear in layer, ventilative and transparent, growing branches are thick and uniform in distribution, the tree crowns are small in surface, stumps are uniform in thickness, and the density reaches about 1000 / m<2>; young sprouts of each tea tree grow on a regular and smooth tree crown surface, bud leaves are distributed uniformly, the density is proper and can reach about 2000 / m<2>, timely plucking is conducted, the raw material yield of famous tea can reach 70%-75%, and the plucking effect is good.

The invention discloses a photocatalysis water-treating material as well as a preparation method and an application thereof. The preparation method of the material comprises the following steps of: (1) preparing an OH-Fe pillar supporting liquid; (2) preparing the mixed liquid of bentonite and a cationic surfactant; (3) dropwise dropping the OH-Fe pillar supporting liquid prepared in the step (1) into the mixed liquid prepared in the step (2) and stirring; (4) after the stirring is completed, applying ultrasonic wave and microwave irradiation to the mixed liquid, and then aging at room temperature; and (5) then pouring a supernate, washing, drying the precipitates, and then grinding and calcining the dried precipitates. The prepared photocatalysis water-treating material can use the visible light (such as sunlight) to excite and assist the catalytic oxidation in the catalytic process and lower the cost.

The invention discloses a dendrobium officinale healthcare product with an auxiliary blood glucose reducing function. The dendrobium officinale healthcare product comprises the following raw materials in parts by weight: 35 to 45 parts of fresh dendrobium officinale bars, 1 to 2 parts of American ginseng, 2 to 4 parts of the root of kudzu vine, 2 to 4 parts of radix trichosanthis and 1 to 2 parts of fructus schizandrae. A preparation method for the dendrobium officinale healthcare product with the auxiliary blood glucose reducing function comprises the following steps: weighing the raw materials; processing the fresh dendrobium officinale bars; processing the American ginseng; performing alcohol extracting; performing water extracting; drying; batching. According to the dendrobium officinale healthcare product with the auxiliary blood glucose reducing function disclosed by the invention, the raw material formula is from clinical practice under the guidance of the theory of traditional Chinese medicine; the herbal medicines in a prescription are concise and are high in pertinency; the medicines in a raw material formula can nourish yin, benefit qi, clear heat and promote the secretion of saliva or body fluid; the active ingredients of the medicines are easy to absorb and are favorable to play efficacy; the medicinal materials in the raw material formula have the homology of medicine and food, and have no toxic or side effect.

A preparation method and the application thereof for styrene block copolymer micro-nanometer microballon relate to a micro-nanometer microballon. The preparation method and the application thereof for the styrene block copolymer micro-nanometer microballon are provided; wherein the preparation method is easy and practicable; the prepared micro-nanometer microballon by the method have good apparent characteristics and is well distributed with controllable particle sizes which range from nanometer-to-micrometers. The styrene block copolymer is dissolved in a solvent to obtain a styrene block copolymer solution which is coated on the surface of a solid and exposed to precipitator steam atmosphere so that the styrene block copolymer micro-nanometer microballon is obtained. The styrene block copolymer micro-nanometer microballon has unique super-hydrophobicity, is treated by UV-irradiation or ozonation, and has super oil repellent character; therefore, the styrene block copolymer micro-nanometer microballon can serve as the classification of paint and textile, etc.

The invention discloses a method for preparing a copolymer with a multielement alternating structure. The method comprises the following steps of: in the presence of a solvent, adding 1mol of nitroso compound, 0.5 to 5mol of dibromo compound, 1 to 10mol of metallic copper or copper salt and 1 to 10mol of polyamine to a reactor and stirring, and reacting for 0.1 to 24 hours at the temperature of 10 to 100 DEG C after deoxidized to obtain the copolymer with the multielement alternating structure. The invention has simple synthetic method and mild reaction condition and can utilize the dibromo compound with different structures to be reacted with the nitroso compound to obtain the copolymer with the multielement alternating structure. The invention overcomes defects of the traditional methods, synthesizes the high molecular weight (Mn>50,000g / mol) copolymer with the multielement alternating structure, and expands the new method for synthetizing high molecules.

The invention provides a face recognition model training method, a device, a system and a computer readable medium. The training method of the face recognition model comprises the following steps: inputting N groups of pictures into a neural network in each batch to obtain a feature vector corresponding to each picture, each group of pictures in the N groups of pictures belonging to the same category, and N being a natural number greater than or equal to 1; calculating the intra-class distance of each group of pictures based on the feature vector, and calculating a first loss function according to the intra-class distance for monitoring the distribution difference of the intra-class distance; calculating a second loss function, and weighting the second loss function and the first loss function to obtain a total loss function; and optimizing the total loss function to converge the total loss function. According to the method, an intra-class distance distribution difference loss functionis introduced in the training process, intra-class distance distribution is normalized, and the problem that thresholds are difficult to unify due to different data set distribution differences can be solved.

The invention discloses an artificial intelligence desk, which comprises a desk body, a stool board is arranged on the left side of the desk body, a pillar is installed on the bottom of the stool board, and a support is installed on the bottom end of the pillar, so The interior of the stool is provided with a single-chip microcomputer, a storage battery, a bluetooth chip and a pressure sensor. In this artificial intelligence desk, the pressure sensor can detect the presence or absence of people on the stool. When there is someone on the stool, the pressure sensor transmits the pressure signal to the single-chip microcomputer, and the single-chip microcomputer transmits the signal to the control panel through the bluetooth chip. The infrared sensor can also detect whether there is a person on the left side of the table body, and transmit the signal to the control panel. When the infrared sensor or pressure sensor detects the signal of the person, the control panel can be used to automatically control the humidifier, desk lamp and fan to work , without manual operation, it is more convenient to use, and at the same time, there will be no problem of forgetting to turn off the electrical appliances, and it is more energy-saving.

The invention discloses a production method of a copper-zinc alloy foil for preventing a lithium dendrite arm from being produced by lithium ions and belongs to the technical field of copper foil electrolysis. The method comprises the steps of carrying out acid pickling, washing, electric deposition, zinc deposition, washing and passivating, extruding and drying; a lithium dendrite arm copper-zincalloy foil of a lithium-ion battery can be prevented from being produced; zinc atom defects which are uniformly distributed in a current collector of the copper-zinc alloy foil can be used as induction crystal seeds to deposit metal lithium for nucleation, so that the distribution of the lithium ions on the surface of the current collector can be effectively improved; a zinc-layer crystal in thecopper-zinc alloy foil has tight and uniform tissue and the tissues are distributed orderly; the thickness is uniform and the deviation is less than 0.01mum; and the adhesive force is good, and the tensile strength and the elongation percentage reach utilization standards of the lithium-ion battery; and the copper-zinc alloy foil has good surface weldability and good high temperature resistance and corrosion resistance.

The invention discloses an easy-to-wire weak current box and method and application for IoT weak current engineering. The easy-to-wire weak current box includes a box body. The back face of the box body is provided with a first wire through groove. The bottom face of the box body is provided with a second wire through groove. The middle part of the right side of the inner wall of the box body is embedded with a socket. A partition board, two support boards and at least one wire sorting mechanism are mounted in the box body. A box door is mounted in the front face of the box body. Each of the left side face and the right side face of the inner wall of the box body is equipped with two fixed blocks. The upper surface of each fixed block is provided with a slot. According to the invention, the fixed blocks are mounted on the inner wall of the box body and the fixed blocks are utilized for mounting the support boards, so that the support boards can be dismounted or mounted according to installation requirements of electric device elements. Adjustment convenience is achieved. Through cooperation of the partition board and the support boards, the inner space of the box body is partitioned, so that placement and installation of the electric device elements are in good order and the layout is comparatively reasonable, and the wiring process is facilitated.

The invention discloses an optical fiber distribution box which comprises a case body, wherein a wire inlet management chamber, a wire outlet management chamber, a mold box containing chamber and a wiring chamber are formed in the case body; the mold box containing chamber is used for containing at least one distribution mold box, and the distribution mold box is wired by the wiring chamber; the optical fiber distribution box further comprises wire arrangement trough plates; a plurality of wire arrangement straight slots are formed in the wire arrangement trough plates; the wire inlet management chamber and the wiring chamber are partitioned by a wire arrangement trough plate, and the wire outlet management chamber and the wiring chamber are partitioned by the other wire arrangement troughplate. Therefore, led-in and led-out cables are orderly arranged in the wire arrangement straight slots on the wire arrangement trough plates, and the cables in the wiring chamber are neatly distributed. Meanwhile, since the distribution mold box is a distributing box, multiple distribution mold boxes are arranged in the mold box containing chamber, and the optical fiber distribution box has higher distribution capacity. Moreover, the cables can be selectively accessed onto different distribution mold boxes during wire distribution, and distribution is flexible.

The invention relates to a novel hollow fiber membrane filter core and a manufacturing method of the novel hollow fiber membrane filter core. The novel hollow fiber membrane filter core comprises a sealing body (1), a hollow fiber membrane (2), a filter core end cover (3), a water producing pipe (6) and a purified water outlet (5), wherein the sealing body (1) is in a three-dimensional structure, and the open end of a hollow fiber membrane filament penetrates through a sealing layer from the outer surface of the sealing body (1) to the inner surface of the sealing body (1). The novel hollow fiber membrane filter core is characterized in that the sealing body (1) comprises a protective layer (9), an outer support layer (8), a sealing layer (10) and an inner support layer (7); the protective layer (9), the outer support layer (8), the sealing layer (10) and the inner support layer (7) are closely combined together from outside to inside; the upper edge of the filter core end cover (3), the upper edge of the water producing pipe (6) and the upper edge and lower edge of the sealing body (1) are closely combined together. The manufacturing method of the novel hollow fiber membrane filter core at least comprises the following three steps: moulding; winding the hollow fiber membrane filament; and pouring the sealing layer (10). The novel hollow fiber membrane filter core disclosed by the invention has the characteristics of simple structure, difficulty in hollow fiber membrane filament fracture, high filter core intensity, material conservation and convenience in manufacturing.

The invention relate to a method for realizing a multimedia printing system suitable for low-precision printing. The system consists of a multimedia printing plate making device, a multimedia printed matter and a multimedia broadcasting device, wherein, the multimedia printing plate making device consists of an output part, an editing part and an input part; the multimedia printed matter of multimedia broadcasting value information which is embedded for broadcasting a multimedia data is printed on the printing medium; and the multimedia broadcasting device broadcasts the multimedia data from the multimedia printed matter. The broadcasting value information is a possibly geometrically distributed or physically distributed net screen coding which is conversed into the pattern recognition of a printing net screen characteristic with at least one characteristic such as a gamma characteristic, a node characteristic, a node distant spacing characteristic, a node distributing characteristic and a node color characteristic. The invention has the following characteristics: the method uses minimal dot matrix digits to realize information recording and information embedding, has a little influence to a printing image and large recorded information capacity, and is not only fit for common printers but also fit for realizing multimedia printing on the printers.

The present invention belongs to the field of polymer material modification, and particularly relates to a high-fluidity metallocene low-density polyethylene resin graft, which comprises the following raw materials by weight: 100 parts of an mLLDPE resin, 0.3-0.8 part of a peroxide initiator, 3-7 parts of maleic anhydride, and 0.1-0.6 part of an antioxidant. The present invention further provides a preparation method of the graft. The preparation method comprises: feeding the materials into a co-rotating twin screw reaction extruder, and post-treating the reaction materials to obtain the grafted product, wherein the material drum of the extruder is divided into three sections, the first section is a melt mixing and dispersing section, the second reaction is a reaction section, and the third section is a metering molding section. According to the present invention, the maleic anhydride is successfully grafted onto the high-performance metallocene linear low-density polyethylene to prepare the high-fluidity metallocene low-density polyethylene resin graft, wherein the melt mass flow rate can achieve more than or equal to 15 g / 10 min, the tensile strength can achieve more than or equal to 17 MPa, and the high grafting rate is provided.

The invention discloses an overwater green maintenance method and belongs to the field of overwater green maintenance. The overwater green maintenance method comprises the specific steps of S1, selecting aquatic plants, to be specific, selecting seedlings growing for 1-3 years, having good growth condition and having no diseases as planting seedlings, transplanting the seedlings to culture pots for rooting, and applying fertilizers to the culture pots to ensure rooting effect. Stabilizer cones are connected through connection ropes via an overwater support net and are stably inserted to the bed; the position of the overwater support net is stabilized; when oxygen supply is required, inflating is performed through an air pump while electromagnetic valves on blowing pipes connected to floating inflatable bags are opened, so that air with oxygen is blown to the roots of aquatic plants, and oxygen supply is achieved; expansion of the floating inflatable bags can drive the overwater supportnet to move up, so that the roots of the aquatic plants are exposed, good photosynthetic effect is gained, and the aquatic plants can grow well.

The invention discloses a plastic hook piece rolling mold which comprises a hollow shaft, a plurality of working circular thin pieces, adjusting circular thin pieces and compression nuts, wherein the hollow shaft is composed of an upper shaft head, a lower shaft head, an outer conical cylinder between the upper shaft head and the lower shaft head and an inner conical expansion sleeve sheathed on the outer conical cylinder; the plurality of working circular thin pieces and the adjusting circular thin pieces are sequentially sheathed on the hollow shaft; the compression nuts are arranged at thetwo ends of the hollow shaft and compress the working circular thin pieces and the adjusting circular thin pieces; the compression nuts correspond to the diameters of the outer conical cylinder and the inner conical expansion sleeve; an annular shoulder is arranged at one end of the inner conical expansion sleeve; an axial opening is arranged on the peripheral wall of the inner conical expansion sleeve; and a cooling liner is arranged in the hollow shaft. The inner conical expansion sleeve with the axial opening expands under the extrusion of the compression nuts, thereby eliminating the radial clearances between the inner holes of the working circular thin pieces and the adjusting circular thin pieces and the central shaft, improving the coaxiality and roundness of the rolling mold and enabling the thickness of a plastic hook piece to be more uniform. In addition, through cooling of the cooling liner, the mold stripping effect of the rolling mold is improved.

The invention discloses a comprehensive carrier suitable for carrying tunnel equipment and facilities. The comprehensive carrier comprises at least one main rod arranged on the side wall or the top of a tunnel in the tunnel driving direction, each main rod comprises a rectangular outer shell and a plurality of branch bins arranged in the rectangular outer shell, clamping grooves extending in the length direction of the main rods are correspondingly formed in the outer side walls of the rectangular outer shells, and a plurality of penetrating holes arranged at intervals are formed in the bottoms of the clamping grooves. According to the comprehensive carrier suitable for carrying the tunnel equipment and facilities, the plug-and-play function of the tunnel equipment and facilities is realized, a convenient installation way is provided, sufficient power supply and network wiring are reserved, and rewiring in the later period is avoided; universal installation of various devices and subsequent increase of the devices are facilitated, pipelines can be clearly classified and carried, and replacement and maintenance are further facilitated; electromechanical equipment is convenient and fast to connect and install, the pipelines are orderly distributed, and disorder is avoided; and the main rods are convenient and quick to install and dismount, the simple and quick dismounting requirements of subsequent cable and equipment increase and decrease are met, the installation and maintenance period is shortened, and the construction and maintenance cost is reduced.

The invention discloses a making method of a hollow fiber membrane filter element sealing layer with a three-dimensional structure. The sealing layer is formed by casting a bonding material, and opening ends of a plurality of hollow fiber membrane filaments penetrate through the sealing layer from the outer surface of the sealing layer to the inner surface of the sealing layer. The making method is characterized by comprising the following steps: casting the bonding material in a mould to form a planar hollow fiber membrane sealing layer; coiling and jointing one or more planar hollow fiber membrane sealing layers to form a three-dimensional hollow fiber membrane sealing layer. The making method has the advantages of reducing the labor capacity, saving the cost, increasing the efficiency and facilitating the large-scale production.

The invention discloses a production method for a lithium ion current collector copper-nickel alloy foil. The method is characterized by comprising the following steps of: depositing an electrolytic copper foil by a special anode plate; adopting titanium-coated iridium as an electrolytic anode plate; pickling the lithium copper foil to eliminate the influence of copper oxide on the surface of theelectrolytic copper foil; conducting cleaning with RO membrane reverse osmosis water, and conducting cleaning through an atomizing nozzle; mixing analytically pure nickel sulfate and analytically pureboric acid to prepare a pure nickel sulfate solution as an electrolyte; and diluting the solution by RO membrane plasma water. Due to the adoption of the process method, the production method provided by the invention effectively solves phenomenon that the lithium ion current collector is broken during the charging and discharging process; and a nickel layer deposited by the lithium ion current collector has compact and uniform crystal structure, neat distribution, and uniform thickness deviation of less than 0.01 [mu]m; and the lithium ion current collector copper-nickel alloy foil has tensile strength and elongation reaching the use standard of the lithium ion battery, excellent surface weldability, good conductivity, high temperature resistance and excellent corrosion resistance.

The present invention discloses a mining- machine- based slowly inclined thin ore vein mechanized continuous mining method, a middle-section tape transport lane is arranged along an ore body, false inclination uphill is tunneled at intervals of a certain distance; a continuous rib pillar and a top pillar or a bottom pillar are arranged between adjacent back- mining units; accurate mining cutting is started from the lower middle section tape transport lane, a mining machine passes, from the back- mining unit edge position, through the top pillar or the bottom pillar for tunneling left and right false inclination uphill to the upper middle section tape transport lane; back- mining is started from the position of the tape transport lane uphill from the right side, the ore body is back mined by the mining machine to left side uphill, the mining machine is in no load, and descends along the left false inclination uphill to the bottom of the back- mining units, the ore body is back mined by the mining machine from left side uphill position to right side uphill, then the mining machine is in no load, and ascends from the right side uphill to the position near the tape transport lane, the mining is performed in the anti-clockwise direction circulation way, a central position reserved ore pillar is left; ores are loaded onto a belt by a carry-scraper for conveying to a ground surface main ore bin. The conveying is easy, work security is high, back- mining efficiency is high, and production capacity is large.

The invention discloses a technical method of a novel root resisting copper mold based electrolytic copper foil. The method comprises the following steps: producing a single-surface photoelectrolyticcopper foil through a special anode plate and a titanium roller in an electrolytic cell, wherein the electrolyte contains 150-200g / L of copper, and 90-110g / L of sulfuric acid; heating the electrolyteuntil the temperature reaches 48-55 DEG C; adding 50-80 parts, by mass, of polyethylene glycol with molecular weight of 6000 to the 1000 parts, by volume, of electrolyte per hour; adding 20 parts, bymass, of low molecular peptide with molecular weight of 3000 to 1000 parts, by volume, of electrolyte; adding 20-30ml of 17% hydrochloric acid to the electrolyte; uniformly stirring; and feeding the electrolyte into an anode tank. The novel root resisting electrolytic copper foil is uniform in structures of crystals on two surfaces, and the crystals on the two surfaces are regularly distributed; the thickness uniformity deviation of the novel root resisting electrolytic copper foil is less than 0.27 microns; the surface roughness Ra is 1.5 microns; the tensile strength is 380-450N / mm<2>; and the ductility is beyond 8.0%.

The invention discloses a treating method of automobile engine lubrication oil. The treating method comprises the following steps that firstly, a pleurotus eryngii cultivation material obtained after harvesting is smashed, water is added to carry out oscillation, and supernate is taken; secondly, Tween 80 is added in the supernate and mixed evenly; thirdly, THz waves with the wavelength of 10-120 micrometers and the frequency of 0.5-2.5 THz are adopted for irradiation; fourthly, polymethacrylate is added in the mixture irradiated in the third step and mixed evenly; fifthly, THz waves with the wavelength of 10-120 micrometers and the frequency of 0.5-2.5 THz are adopted for irradiation; sixthly, THz waves are used for irradiating the automobile engine lubrication oil; seventhly, the substance obtained in the fifth step is added into the irradiated automobile engine lubrication oil, and the mixture continues to be irradiated with THz waves. By means of the method, the lubricity of the automobile engine lubrication oil can be improved; meanwhile, the automobile power can be improved, and oil saving and emission reduction can be achieved.

The invention relates to the technical field of power distribution cabinets, and in particular relates to an outgoing line plate arrangement device of a power distribution cabinet. The device comprises a power distribution cabinet. A middle inner cavity of the power distribution cabinet is set as a mounting inner cavity; the outer walls of the left and right sides of the front end face opening ofthe power distribution cabinet are provided with a pair of symmetrical slots; a sealing cover plate is arranged on the upper end face of the power distribution cabinet; and an input jack is formed inthe middle of the rear end face of the power distribution cabinet. The device has the beneficial effects that a cable arrangement inserting plate is additionally arranged; the output position is fixed through the cable arrangement inserting plate, and therefore the purpose of cable arrangement is achieved; cables in the power distribution cabinet are distributed more attractively and tidily, andanalysis and maintenance of a circuit are facilitated; through cooperation of sliding columns with spring extrusion and semicircular clamping blocks, extrusion and fixation of output cables are realized; and through replacement of the models of the clamping blocks, the device is suitable for cables with different thickness specifications, so that the cable arrangement position is further fixed, and falling is avoided.

The invention relates to an application of a chymotrypsin preparation in treating oral ulcer. According to the invention, the preparation comprises 0.1-30 parts by weight of chymotrypsin and 70-99.9 parts by weight of a solid excipient which is selected from carboxyvinyl polymer (Carbopol), hyaluronic acid, poly(aspartic acid), gum Arabic, citric acid, sodium alginate, acrylic resin, magnesium stearate, starch, or a combination thereof. The oral ulcer preparation is a solid or semi-solid preparation. In the preparation, the content of the raw material chymotrypsin is higher than 95.0%. The preparation can be powder or tablets. The invention also provides a preparation method of the preparation. The oral ulcer preparation provided by the invention is advantaged in simple application, good curative effect, and long action duration.

The invention discloses a net piece feeding method for artificial seedling of adhesion-type dual-shell animals. The feeding method comprises the steps of firstly determining the opportunity for feeding the net pieces, calculating the number of the net pieces required by a culturing pond, designing the feeding line number and the line spacing of the culturing pond, hanging and feeding a net by virtue of a net feeder, and finally arranging the net pieces, so as to finish the whole net feeding process, wherein the main body of the net feeder is of a rod-shaped net frame, a plurality of net teeth are arranged on the net frame, and handles are respectively arranged at two ends of the net frame. The feeding method is applicable to multiple adhesion-type dual-shell animals such as bay scallops, chlamys farreri, scapharca broughtonii and the like. The net piece feeding method has the advantages that the line production can be adopted, the operation steps are simple, lots of labor is not required, each operator is detailed in work division and is skilled in operation, so that the large-scale net piece feeding operation has the characteristics of high efficiency and convenience; besides, the adopted net feeder is simple in structure, easy to produce, low in production cost and convenient to generalize in large scale.

The invention belongs to the technical field of electric power instruments, and particularly relates to a weak current network power distribution cabinet which comprises a cabinet body, a wire inlet pipe and a wire outlet pipe. The cabinet body is a cavity type cube with an opening in one side; a cabinet door is rotatably connected to an opening of an inner cavity of the cabinet body through a hinge; an inner cavity of the cabinet body is divided into an appliance groove and a winding groove; the wire inlet pipe is installed on the side, away from the winding groove, of the appliance groove, and the wire outlet pipe is installed on the side, away from the appliance groove, of the winding groove; a first sliding groove is formed in the side, away from the cabinet door, of the appliance groove; and the cross section of the first sliding groove is designed to be in an isosceles trapezoid shape. According to the weak current network power distribution cabinet, the wire winding roller is matched with the extension plate, so that the wire and the wire winding roller are incompletely fixed, when the wire is pulled by external force, a certain buffer effect exists, the wire can be effectively protected, meanwhile, the wire winding groove and the appliance groove can be communicated at any time through the isolation plate arranged in the first through groove, and the mounting and dismounting of the appliance are more convenient and faster.