34results about How to "Simple components" patented technology

The multifunctional cervical and lumbar vertebra traction bed comprises an upper bed outer frame, side sliding rails are arranged at the front end and the rear end of one side of the upper bed outer frame correspondingly, a lower bed outer frame is movably connected to one sides of the two side sliding rails, and S-shaped frames are fixedly connected to the front side and the rear side of the upper bed outer frame correspondingly; the lower end of one side of the upper bed outer frame is fixedly connected with a U-shaped supporting frame, a T-shaped supporting frame is fixedly connected between end feet of one sides of the two S-shaped frames, a guide rail is fixedly connected between the upper end of the T-shaped supporting frame and the lower end of the U-shaped supporting frame, the surface of the guide rail is sleeved with two sliding frames, the upper ends of the two sliding frames are fixedly connected with a movable beam (A), and the lower ends of the two sliding frames are fixedly connected with a movable beam (B). And one end of the movable beam (A) is connected with a stretching driving mechanism. Compared with the prior art, the S-shaped frame has the advantages that the handrail and the support are integrated in the manufacturing process, so that an existing handrail structure is replaced, components are further simplified, and the mounting efficiency is improved.

This invention belongs to the field of metal rust prevention technology, specifically relating to an environmentally friendly water-based rust-preventive composition, its preparation method, and its application. The composition comprises, by weight, 3-8 parts of a first triazine compound, 1-5 parts of a second triazine compound, 10-20 parts of 2-amino-2-methyl-1,3-propanediol, 2-5 parts of dipropylene glycol monomethyl ether, and 65-85 parts of water. The first triazine compound is a triazine compound having substituents containing hydrophobic segments and at least two aminocarboxylic acid substituents, and the second triazine compound is a triazine compound having thiol substituents. This invention forms a dual-anchored protective film on the metal surface through the two triazine compounds, exhibiting excellent salt spray resistance, damp heat resistance, and film density. It achieves a salt spray test duration of 72 hours, a damp heat test duration of 960 hours, and an adhesion rating of 0. Furthermore, it is free of nitrites, phosphates, and heavy metals. The preparation method is simple, suitable for industrial production, and can be widely applied to metal rust prevention in machinery manufacturing, automotive parts, and other fields.

The application provides a boar semen cryopreservation agent and an application method; the boar semen cryopreservation agent comprises alpha-amylase, and the content of the alpha-amylase is 10-1000 mu g / L. The application method of the cryopreservation agent is as follows: centrifuging the boar semen after collection and pretreatment, removing supernatant after centrifugation; adding a refrigerant, re-suspending the sperm, and then placing the sperm in a 4 DEG C refrigerator and standing for 3-4 hours; adding a freezing liquid and fully mixing; filling the semen into a thin tube at 4 DEG C, uniformly laying the thin tubes in a freezing rack, and then precooling on a liquid nitrogen surface and then placing in liquid nitrogen for freezing. The application has the advantages that: the overall components of the cryopreservation agent are simple, the cost is low, and the overall cost performance is high; due to the addition of alpha-amylase in the cryopreservation agent, the storage quality of the boar frozen semen can be significantly improved; and the activity, acrosome integrity, DNA integrity, mitochondrial activity and other physical and chemical properties of the boar frozen semen are effectively improved.

The purpose of this disclosure is to provide a component with excellent chemical resistance, a method for manufacturing the same, and an apparatus for semiconductor manufacturing. This disclosure pertains to a component formed by laminating at least a portion of the surface of a material (a) with a barrier material having aromatic rings, wherein the component is at least one selected from the group consisting of components for building materials, components for mobile vehicles, components for aerospace applications, components for semiconductors, and components for information and communication.

The utility model provides a pier-side bracket for pushing a large-tonnage steel beam, which is characterized by comprising upright posts arranged on two sides of a pier, an upper backing plate and a lower backing plate respectively arranged at the upper end and the lower end of each upright post, and a top pad arranged on the upper backing plate, and is characterized in that anchoring horizontal support groups are arranged on the upright posts from top to bottom at intervals on the side of the pier; and one end of each layer of anchoring horizontal support group is fixedly connected with the pier, and the other end is fixedly connected with the upright post to form a closed-loop horizontal anchoring support structure. Compared with a non-pier-side support, the support is provided with a pier horizontal support, replacement filling hardening or piling curing is not needed, the material strength of the support can be reduced, the material amount is reduced, the construction cost of a temporary support is reduced, and field installation is convenient; the provided closed-loop anchoring horizontal supporting set is used for coping with horizontal thrust generated by pushing of the steel beam, transverse impact force generated in the pushing process of the steel beam is resisted through a prestress opposite-pulling structure, the bearing capacity of the pushing pier-side support is improved, stable installation of the pier-side support is facilitated, and the pushing requirement of the large-tonnage steel beam is met.

The application discloses a cement aerogel material with micro-expansion and shrinkage inhibition and a preparation method thereof. The cement aerogel material is prepared by mixing, foaming, pore forming and drying of a first component, cement and a second component. The first component comprises a hydrogel polymer, an expansion component, water and a dispersing agent. The second component comprises a foaming agent. The weight ratio of the hydrogel polymer, the expansion component, water and the cement is 0.08-0.3:0.04-0.3:8-15:1. By introducing the expansion component with a proper proportion, the expansion component expands, the intermediate-state skeleton strength is improved, and the shrinkage is resisted. The expansion volume is not less than the shrinkage volume in the drying process, the drying shrinkage is effectively offset, the overall structure integrity is maintained, and finally an additional active reinforcement effect is generated.

The utility model relates to the technical field of smoke-blocking vertical walls, in particular to an automatic smoke-blocking vertical wall which comprises a smoke-blocking vertical wall body, a traction mechanism, a triggering mechanism and a sensing device. The ceiling screen main body is arranged below a bare ceiling or on a decorative ceiling; the traction mechanism is connected with the smoke screen main body and is used for adjusting the lifting of the smoke screen main body; the traction mechanism is connected with the triggering mechanism; the sensing device is detachably connected with the triggering mechanism; when the induction device is triggered, the triggering mechanism can be triggered to drive the traction mechanism to move, and lifting of the ceiling screen body is adjusted. The induction device is a liquid glass bulb or a device containing easily-melted metal. According to the automatic smoke-blocking vertical wall, after the induction device induces high-temperature gas or smoke dust and is triggered, the triggering mechanism drives the traction mechanism to move so as to control and adjust the lifting of the smoke-blocking vertical wall main body, and the induction device does not need to be networked or provide a signal for use, and can automatically react and independently work.

The invention relates to the technical field of traditional Chinese medicine and health food, in particular to a composition for assisting in improving memory, application and a preparation. The composition for assisting in improving the memory comprises the following components in parts by weight: 2-9 parts of ginseng, 2-9 parts of ligusticum wallichii, 3-10 parts of gastrodia elata and 0.2-0.8 part of a ginkgo leaf extract. The preparation method of the composition comprises the following steps: adding water into gastrodia elata for extraction, filtering to obtain medicine residues and an extracting solution, concentrating the extracting solution, adding ethanol for fractional precipitation, and merging precipitates to obtain gastrodia elata polysaccharide; adding the medicine residue, ginseng and ligusticum wallichii into ethanol, extracting, filtering, concentrating under reduced pressure, and drying to obtain extract powder; and finally, mixing the gastrodia elata polysaccharide, the extract powder and the ginkgo leaf extract. Exploration is carried out on extraction methods of all the components, and efficacy experiments prove that the finally prepared composition has a remarkable memory improving effect.

The invention discloses a method for synthesizing tetracyclododecene (TCD) with high selectivity and low byproduct, which comprises the following steps of: pyrolyzing dicyclopentadiene (DCPD) serving as an initial raw material to generate cyclopentadiene (CPD), and reacting with norbornene (NB) in a system to generate TCD. According to the method, the feeding molar ratio of NB to DCPD is controlled to be 1: (0.237-2.138), preferably 3: 1, the reaction is carried out at the temperature of 160-280 DEG C and under the pressure of 3.0-8.0 MPa, CPD auto-agglutination and side reactions of CPD, DCPD, TCD and the like can be effectively inhibited, and the reaction selectivity is remarkably improved. The method is simple in process, the content of by-products in the obtained crude product is low, the components are relatively simple, the solvent and unreacted monomers can be conveniently recovered through rectification, the TCD product with the purity of 95% or above is finally obtained, and the whole process is easy for large-scale production.

The application discloses a mechanical self-locking type concrete precast pile joint structure and a construction method, which comprises an upper end plate, a lower end plate and a connecting structure composed of an upper sleeve, a lower sleeve, two groups of wedge pieces, two groups of positioning rings and two connecting steel bars; the connecting structure has multiple groups and is arranged between longitudinal steel bars in an upper precast pile and a lower precast pile respectively, and is used for connecting the upper precast pile and the lower precast pile. The longitudinal steel bars in adjacent concrete precast piles are mechanically connected one by one by the sleeve, the connecting steel bar, the positioning ring and the wedge piece; the force transmission of the longitudinal steel bars in the precast piles is direct and reliable; after the piles are connected, the longitudinal steel bars in the upper and lower pile bodies are mechanically self-locked; the longitudinal steel bars after connection cannot be pulled apart; the safe and reliable, convenient construction and low-cost goal of the concrete precast pile joint is achieved; and meanwhile, the construction method can also be used for connecting concrete components such as concrete precast columns and concrete precast shear walls.

The present application discloses a binder, a negative-electrode slurry, a negative electrode, and a lithium-ion battery. In the present application, the binder comprises a first block polymer and a second block polymer. The first block polymer is a lithiated tetrablock polymer having a structure shown as B-C-B-A, wherein A represents a polymer block A, B represents a polymer block B, and C represents a polymer block C; the polymer block A is polymerized from alkenyl formic acid monomers; the polymer block B is polymerized from aromatic vinyl monomers; and the polymer block C is polymerized from acrylate monomers. The second block polymer is a lithiated triblock polymer having a structure shown as E-F-E, wherein E represents a polymer block E, and F represents a polymer block F; the polymer block E is polymerized from alkenyl formic acid monomers; and the polymer block F is polymerized from acrylate monomers. The binder provided by the present application has strong ion-conducting capability, simple components, low cost, suitable modulus, and thickening and dispersing effects.

The invention discloses a microwave concentration measurement and control instrument, which comprises a display unit, a microwave sensor, a temperature sensor, at least two coaxial microwave cables and a Pt100 lead, the temperature sensor is integrated on the microwave sensor, the display unit is provided with a mounting bottom plate, the mounting bottom plate is provided with a plurality of mounting holes, and the Pt100 lead is arranged in the mounting holes. The display unit and the microwave sensor are detachably connected with corresponding mounting holes through a coaxial microwave cable, the temperature sensor and the display unit are detachably connected with corresponding mounting holes through a Pt100 wire, the mounting bottom plate is further provided with a detachable USB data line, and one end of the USB data line is provided with a USB-B plug; the invention also discloses a microwave concentration measurement system. According to the technical scheme, through compact design, components are simple, operation is simple and easy to operate, the storage performance is optimized, and the measurement effect and the measurement efficiency of the microwave concentration are effectively improved.

The present application relates to a composition comprising an antigen-binding fragment and an excipient. The antigen-binding fragment comprises an immunoglobulin single variable domain capable of specifically binding to PD-L1 and comprising CDR1-3, the CDR3 comprising an amino acid sequence set forth in SEQ ID NO: 47, and the excipient may comprise proline. The composition has good stability and suitable viscosity and can be used for subcutaneous injection.

The application belongs to the technical field of live cell imaging, and discloses a live cell nucleic acid imaging system, method and use based on CRISPR and nanobody, which comprises: a modified dCas9 protein expression vector containing n ALFA polypeptide tags; a modified sgRNA expression vector comprising a specific guide sequence; and a fluorescent nanobody expression vector containing a bivalent or trivalent fluorescent nanobody coding sequence, which are operatively connected, wherein a fluorescent protein is inserted between nanobody split sites as an internal tag, can be combined with the ALFA polypeptide tag carried by the dCas9 protein and stably emit light, and the free state fluorescent nanobody is self-degraded and does not emit light. The application can visualize single copy nucleic acid sequences with single molecule resolution and high signal-to-noise ratio, especially the imaging marking of single copy nucleic acid sequences in live cells.

The invention provides a treating agent and application of the treating agent as a material for improving the surface wettability of a plating layer, the treating agent comprises methanol and a surfactant, the surfactant comprises 99-105 parts by volume of methanol, 10-15 parts by volume of 1, 2-octylene glycol, 10-15 parts by volume of alkylphenol polyoxyethylene ether and 10-15 parts by volume of fatty alcohol-polyoxyethylene ether, and the treating agent comprises 10-15 parts by volume of 1, 2-octylene glycol, 10-15 parts by volume of alkylphenol polyoxyethylene ether and 10-15 parts by volume of fatty alcohol-polyoxyethylene ether. 0.2 to 1 part of 1, 2-octylene glycol, 0.05 to 1 part of alkylphenol polyoxyethylene ether and 0.05 to 1 part of fatty alcohol-polyoxyethylene ether. The technical problems that after an existing metal surface is electroplated, the wettability of a plating layer surface is reduced, the strength is insufficient when an electroplated workpiece is bonded with other parts, and the falling risk exists are solved. The method can be widely applied to metal coating surface treatment.

The invention discloses a linear alkylbenzene production process and a linear alkylbenzene production device. The invention adopts a reactive distillation method to carry out an alkylbenzene reaction. The alkylbenzene reaction is an exothermic reaction. The heat released by the reaction can be used as a distillation heat source to achieve full utilization of process energy, thereby reducing production energy consumption. In addition, the heat generated by the alkylation reaction is absorbed by the rising airflow, which can also prevent the temperature of the reaction section from being too high, causing the catalyst to be sintered and then causing the activity to decrease. The catalyst used in the linear alkylbenzene production process of the invention is a solid acid catalyst, which is non-corrosive to the reaction equipment and easy to regenerate and recycle. In the production process, the reaction and distillation occur simultaneously, and the reaction product continuously flows into the linear alkylbenzene separation tower for separation, which is conducive to the alkylation reaction to proceed in the forward direction. In general, the linear alkylbenzene production process of the invention has low energy consumption, low operating difficulty, long catalyst service life, high conversion rate of linear alkylbenzene, and very few reaction by-products.

The invention relates to a medical ray protection preparation for relieving radiodermatitis, and belongs to the technical field of biomedical skin treatment. The preparation is composed of a preparation A and a preparation B. The preparation A is composed of the following components in percentage by weight: 0.01-0.03% of superoxide dismutase, 0.005-0.05% of trehalose and the balance of ultrapure water. The preparation B is prepared from the following components in percentage by weight: 0.01 to 0.04 percent of chlorogenic acid, 2.5 percent of potassium sorbate, 15 percent of sorbitol, 1 percent of hyaluronic acid, 2.5 percent of carboxymethyl chitosan and the balance of purified water. The superoxide dismutase, the trehalose, the chlorogenic acid and other active ingredients are utilized to relieve radiodermatitis from multiple aspects of removing active oxygen at a wound part, resisting inflammation, inhibiting bacteria and promoting skin barrier repair, and by utilizing the moisturizing and antibacterial effects of carboxymethyl chitosan and the functions of promoting collagen production and tissue repair of hyaluronic acid, the wound healing effect is improved, and the wound healing effect is improved. The radiodermatitis is comprehensively treated.

The invention relates to the technical field of sewage treatment, and provides a foamed magnesium composite filler as well as a preparation method and application thereof. The foamed magnesium composite filler comprises magnesium, foaming agent residues and an optional inorganic carbon source, and is of a porous foam structure. The foamed magnesium composite filler provided by the invention can be used for treating nitrate-containing sewage, has a very good nitrate-nitrogen treatment effect, and solves the problems of high filler cost and easiness in channeling or mineralization.

The application provides a bethyla huidobrensis bisexual attractant, a preparation method and application thereof. The bethyla huidobrensis bisexual attractant comprises methyl eugenol and isoamyl acetate. The attractant significantly improves the attraction effect on male and female bethyla huidobrensis, reduces the use amount of methyl eugenol, has the advantages of low cost and simple preparation, and is suitable for industrialized production of the bethyla huidobrensis killing agent.

An electric range according to an embodiment of the present disclosure comprises: a case which forms the appearance of the electric range; a heating unit which heats an object to be heated; an upper bracket which is disposed under the heating unit and supports the heating unit; an operation unit through which operation commands for controlling the heating unit are input; a printed circuit board on which at least one electronic component for driving the heating unit is mounted; and a supporter which is disposed under the upper bracket, wherein the supporter comprises a first support part which supports the printed circuit board and a second support part which supports the operation unit.

The invention discloses a highly efficient deodorant, which is composed of the following materials in parts by mass: polyacrylamide, porous starch, calcium chloride, dicationic quaternary ammonium salt, hydrogen peroxide solution, deionized water, honeysuckle extract, stabilizer and organic acid. Its preparation method comprises: S1: deionized water is added to a stirring kettle, then calcium chloride, dicationic quaternary ammonium salt, honeysuckle extract are added, and stirring and mixing are started; S2: organic acid and stabilizer are added to the mixed solution obtained in step S1, and then hydrogen peroxide solution is added to mix evenly; S3: porous starch is added to the mixed solution obtained in step S2, and then polyacrylamide is added to mix evenly, and the mixture is divided into spray packaging bottles for storage. The deodorant prepared by the present invention has simple components, low cost, simple preparation method, good deodorizing effect, can and has both sterilization and disinfection functions, can be applied to scenes such as hospitals, families, and pet places, and has a wide range of applications and good effects.

This invention relates to an iron polyphenol nanocapsule, its preparation method, and its applications. The nanocapsule is prepared from raw materials containing ferric salts, ferric ions, and gossypol via a microfluidic chip. The iron polyphenol nanocapsule containing gossypol-ferric ions-ferric ions prepared by this invention using a microfluidic chip as a reactor exhibits uniform size and good stability. It can achieve co-delivery of dual chemotherapy drugs, T1 magnetic resonance imaging, and trimodal combined therapy of tumors (chemodynamic therapy / dual-channel chemotherapy / immunotherapy), showing potential applications in cancer diagnosis and treatment.

This invention provides a highly conductive copper paste that cures in an air atmosphere, its preparation method, and its applications, belonging to the field of conductive paste preparation technology. The highly conductive copper paste comprises: 60-80% conductive copper powder; 3-10% polymer resin; 1-3% curing agent; 3-10% first solvent; 1-5% additives; and 7.5-17% particle-free conductive copper ink. The copper salt precursor in the particle-free conductive copper ink is dissolved in the form of copper ions in a mixture of its complexing agent and second solvent. When the highly conductive copper paste is heated and cured in an air atmosphere, the copper ions in the particle-free conductive copper ink are reduced in situ to nano-copper particles, which form welded connections between the conductive copper powder particles, constituting a conductive network composed of micron-sized conductive copper powder and in-situ generated nano-copper weld points. The highly conductive copper paste of this invention has low manufacturing cost, high conductivity, and the potential for room temperature dormancy and heat-triggered decomposition.

The invention discloses a thickness homogenization method for a magnesium-aluminum alloy self-special-shaped layered hydrothermal film, and belongs to the field of metal surface treatment.The thickness homogenization method adopts a single sodium hydroxide solution system, and the solution is simple in component, green, less in pollution and free of use of hazardous chemical substances. By adjusting the concentration of a hydrothermal solution, namely a sodium hydroxide solution, a self-special-shaped layered hydrothermal film is obtained, namely a composite film with a compact magnesium hydroxide layer on the inner layer and a lamellar LDH layer on the top. Second phases which are different in form and graded in size are obtained through a heat treatment method, the refined second phases are evenly dispersed in crystal grains, and therefore the phenomenon that the thickness of a hydrothermal film is not uniform due to the second phases is avoided for the prepared hydrothermal film layer.

The present invention provides a perchlorate wastewater treatment agent, which consists of a targeted removal agent and a guiding activator. The core components of the targeted removal agent include octyl trimethyl ammonium chloride, trioctyl methyl ammonium chloride, benzyl trimethyl ammonium chloride, decanyl trimethyl ammonium chloride, didecyl dimethyl ammonium chloride, dodecyl trimethyl ammonium bromide, dodecyl bishydroxyethyl methyl ammonium chloride, tetradecyl trimethyl ammonium chloride, etc. The guiding activator includes one or more of polyferric sulfate, polyferric chloride, polyaluminum chloride iron, and polyaluminum silicate iron. The treatment agent of the present invention has simple components, and a large number of perchlorate-philic ionic groups contained therein can fully combine with perchlorate in wastewater, and perchlorate is precipitated from water in the form of precipitation, and then separated and removed, and the one-step removal rate is as high as more than 95%.

The present invention relates to a large-size Cu1234 superconducting bulk material and a preparation method thereof, belonging to the technical field of superconducting materials, and solving the problem that the method of the prior art prepares the Cu1234 superconducting material in a small size, which limits the application of the Cu1234 superconducting material. The method of the present invention adopts pre-pressing molding technology to improve the density of the precursor, prevent the large-size sample from shrinking violently during the high-pressure and high-temperature synthesis process, and cause the sample size to be reduced; adopts secondary sealing technology to seal the pre-pressed precursor to prevent the loss of oxygen during the high-pressure and high-temperature synthesis; adding an insulation layer reduces the temperature gradient, effectively ensures the stability of the temperature during synthesis, and ensures that the sample has excellent superconducting performance. An industrial-grade six-sided top press is used as a device for high-pressure and high-temperature synthesis, providing a cavity size space of up to 4-5 cm, significantly increasing the sample space in the high-pressure and high-temperature test, and ensuring the preparation of centimeter-level Cu1234 superconductors.

The invention provides a composition with hypoglycemic activity and a preparation method and application thereof, and belongs to the technical field of biological medicine. According to the composition disclosed by the invention, cinnamon, turmeric and red ginseng which are homologous in medicine and food are used as core raw materials and are compounded with eggshell membrane extract; after scientific components in parts by weight, all the raw materials achieve synergistic interaction, the inhibition rate on alpha-glucosidase can be remarkably increased, hyperglycemia model rat tests prove that the composition can remarkably reduce the blood sugar concentration, zebra fish tests prove that the composition can remarkably reduce the insulin content and the glucose level, the blood sugar reducing effect is remarkable, and the composition is suitable for clinical application. The traditional Chinese medicine composition can be effectively applied to blood sugar reduction and diabetes treatment. The composition is simple in component, clear in composition, high in raw material safety and free of toxic and side effects, the risk of liver injury possibly caused by combination of multiple traditional Chinese medicines is effectively avoided, and the medication safety and patient compliance are greatly improved.

This invention discloses a method for measuring gravity gradient based on an elastic beam. The steps include: constructing two identical measurement units, each unit comprising an angle measuring instrument, an elastic beam, and a mass block. The mass block is positioned at the tail end of the elastic beam, and the fiber optic loop of the angle measuring instrument is positioned on the mass block. The mass of the elastic beam is much smaller than the mass of the mass block. When measuring the diagonal component Γ in the i-direction of the gravity gradient... ii During measurement, the first ends of the two elastic beams are fixedly connected to a base, and the elastic beams in the two measuring units are placed parallel and symmetrically along the i-direction; the distance between the two mass blocks and the axis of symmetry is h; then the diagonal component Γ is calculated using the formula. ii When performing the off-diagonal component Γ in the gravity gradient ji During measurement, the elastic beams in the two measurement units are placed end to end along the j direction.

The invention discloses a plastic packaging material for food and a preparation method of the plastic packaging material. On one hand, the invention provides the plastic packaging material for the food, and the plastic packaging material is prepared from the following raw material components in parts by mass: 60 parts of HDPE (High-Density Polyethylene) resin, 40 to 50 parts of EVOH (Ethylene Vinyl Alcohol) resin, 24 to 32 parts of non-isocyanate polyurethane prepolymer and 6 to 10 parts of cinnamyl aldehyde grafted nano titanium dioxide; the non-isocyanate polyurethane prepolymer is prepared from the following raw material components in parts by mass: 60 to 68 parts of methyl 1, 6-hexamethylene dicarbamate, 6 to 8 parts of bio-based polyol, 10 to 16 parts of eugenol, 1 to 3 parts of ferric oxide and 2 to 4 parts of zinc acetate. On the other hand, the invention provides a preparation method of the plastic packaging material for food. The packaging material disclosed by the invention is excellent in high and low temperature resistance, excellent in solvent resistance and moisture resistance, excellent in oxygen barrier property, free of harmful substance precipitation and relatively excellent in antibacterial property.

The invention relates to the technical field of agricultural biological prevention and treatment, in particular to a bactericidal composition for preventing and treating asparagus stem blight and a preparation method thereof. The composition is prepared from the following components in parts by mass: 1 to 20 parts of fluopyram, 1 to 20 parts of phenazino-1-carboxylic acid, 0.1 to 1 part of an organic silicon surfactant, 5 to 30 parts of an auxiliary agent and 29 to 92.9 parts of water. The fluopyram and the phenazino-1-carboxylic acid are compounded according to a specific proportion, and the action mechanisms of the fluopyram and the phenazino-1-carboxylic acid are complementary, so that the control effect on the asparagus stem blight is remarkably improved; meanwhile, the introduced organosilicon surfactant can reduce the surface tension of the liquid medicine, enhance the adhesion and spreading capability on the thick wax layer of asparagus and improve the utilization rate of effective components; through compounding of the biological-source phenazino-1-carboxylic acid and the chemical agent fluopyram, the problem of drug resistance enhancement caused by long-term use of a single chemical agent can be avoided, and the drug use frequency and dosage are reduced; and the introduction of biological source components reduces the risk of environmental residue, and gives consideration to both prevention and treatment effects and ecological safety.