China latest patents query

The latest invention patents collect the data information of China invention patents from 2000 to 2024, typesetting according to the date of patent publication, including patent number, application date, invention Bibliographic data, abstracts, and specification data of people are convenient for scientific researchers to quickly browse and search for patents.

File transmission method and system and computer readable storage medium

PendingCN112492033AAffect the transmission effectImprove transmission performanceTransmissionComputer hardwareZero-copy

Owner:SHENZHEN YEAHKA TECH

Ultrasonic electric spark deposition equipment capable of automatically compensating electrode loss

PendingCN114703477ARealize automatic compensation functionUniform depositionMetallic material coating processesCross connectionReciprocating motion

Owner:ZHEJIANG UNIV OF TECH

Water cooling unit of full-liquid type screw machine

ActiveCN105299941AImprove cooling effectImprove cooling efficiencyCompression machines with non-reversible cycleBusiness efficiencyFreon

Owner:谭洪德

Reagent, device and method for rapidly counting eukaryotic microorganisms

PendingCN114134198ASimple compositionGuaranteed accuracyBioreactor/fermenter combinationsBiological substance pretreatmentsCarboxyl radicalFluorescence

Owner:ACAD OF NAT FOOD & STRATEGIC RESERVES ADMINISTRATION

Graphene stripping device and graphene production method

PendingCN111204746ASimple structureEasy to installGrapheneEngineeringGraphite

Owner:丰域科技(北京)有限公司

Concrete heat preservation cover

InactiveCN107553706ACeramic shaping apparatusCivil engineering

Owner:天津修美科技有限公司

Composite rubber for ignition motor and preparation method thereof

InactiveCN108192246AHigh temperature resistantHigh strengthFlat articlesEngineeringOperability

Owner:WUHU HANGTIAN SPECIAL CABLE FACTORY

Key-controlled water dispenser

InactiveCN111096232AEasy to controlAnimal watering devicesWater storageWater storage tank

Owner:MIAOZHEN INFORMATION TECH CO LTD

Heating regenerative type deodorization method and device for air cleaner

PendingCN110787627AAvoid the problem of being occludedGive full play to the deodorizing performanceGas treatmentDispersed particle separationThermodynamicsProcess engineering

Owner:宁波德业日用电器科技有限公司

Automobile shock absorber with monitoring function

ActiveCN113551001AWorking Status MonitoringPlay a protective effectNon-rotating vibration suppressionApparatus for force/torque/work measurementLoad cellForce sensor

Owner:HANGZHOU VOCATIONAL & TECHN COLLEGE

Foldable hand-held telephone

InactiveCN1135879CSmall sizeReduce weightRadio/inductive link selection arrangementsTransmissionHand heldEngineering

Owner:LENOVO INNOVATIONS LTD HONG KONG

Mullite polycrystalline fibre reinforced foam glass

InactiveCN104176942AHigh mechanical strengthBig impactAir atmosphereFoaming agent

Owner:TIANJIN UNIV +1

Method for avoiding early-stage bolting of celery

InactiveCN106561254AReduced activityPromote germinationFertilising methodsNitrogenous fertilisersSeed dormancySeed treatment

Owner:杨珊洪

Test and control method of material testing machine

InactiveCN105320002ARealize real-time automatic collectionRealize automatic controlUsing optical meansInvestigating material ductilityAutomatic controlData acquisition

Owner:XIAN ZHONGZHI HUIZE PHOTOELECTRIC TECH

Ejection type efficient magnetic steel pasting tool

InactiveCN109921579ALow costImprove efficiencyManufacturing stator/rotor bodiesArchitectural engineering

Owner:葛素琴

Preparation method of industrial active polyester fiber

InactiveCN102330192AImprove adhesionImprove bindingSynthetic polymer filament chemical after-treatmentPolyesterAdhesive

Owner:ZHEJIANG KESITE CHEM FIBER

Explosion-proof heat-insulation film with functions of demisting and defrosting and preparation method of explosion-proof heat-insulation film with functions of demisting and defrosting

InactiveCN104118149AAvoid breakingHeating evenlyLaminationLamination apparatusInsulation layerThermal break

Owner:WUXI GRAPHENE FILM

Method for evaluating flight safety of unmanned aerial vehicle in a typhoon yard

ActiveCN113223329AFlight safetySolve flight safety issuesFlight plan managementAir velocityUncrewed vehicle

Owner:CHENGDU AIRCRAFT INDUSTRY GROUP

Multi-roll reciprocating polishing wheel system

InactiveCN108406557AWith precise pressurization functionSimple and regular structurePolishing machinesGrinding machine componentsBristleBall screw

Owner:HUNAN YUJING MACHINE

Method and apparatus for playing video image

InactiveCN101202812AReduce power consumptionConvenient teachingTelevision system detailsNon-electrical signal transmission systemsVideo imageUSB

Owner:谢剑斌 +1

Delay-locked loop device and operation method for DLL device

PendingCN113746475APulse automatic controlComputer hardwarePhase detector

Owner:WINBOND ELECTRONICS CORP

Hollow glass parting stop component for shutter

InactiveCN103556918ANot easy to get onIncrease the shading factorDoors/windowsWindow shutterEngineering

Owner:SMARTSOLAR ENERGY TECH

Filtering equipment applying graphene ultrafiltration membrane

InactiveCN112295407AAchieve cleaning effectPurifying airGas treatmentSpecific water treatment objectivesActivated carbon filtrationStructural engineering

Owner:海瑞膜科技南通有限公司

Composite enterprise credit early warning system and method

PendingCN113780604AFinanceForecastingEarly warning systemComputer science

Owner:杭州衡泰技术股份有限公司

Facial expression acquisition modification imaging system and method

PendingCN112581417AImprove interactivityHigh playabilityImage enhancementImage analysisNetwork connectionDisplay device

Owner:深圳市众采堂艺术空间设计有限公司

Goods delivery system for high-rise building object delivery

InactiveCN107539736AEnsure safetyShorten the timeCoin-freed apparatus detailsApparatus for meter-controlled dispensingEngineeringHigh rise

Owner:CHENGDU 90 DEGREE IND PROD DESIGN CO LTD

Fretting friction testing machine for micro displacement achieved through ultrasonic vibration

InactiveCN104483262ASimple structureReduce use costUsing mechanical meansInvestigating abrasion/wear resistanceVibration amplitudeEngineering

Owner:HUAQIAO UNIVERSITY

Wireless centralized control tension measuring instrument

InactiveCN102116693AReduce weightEasy to useApparatus for force/torque/work measurementMeasuring instrumentSingle chip

Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

Dried sweet-scented osmanthus manufacturing and drying device for gardens

InactiveCN107631595AAvoid scorchingSimple structureDrying solid materialsDrying machines with non-progressive movementsEngineeringOsmanthus

Owner:雷晓琴

Polymer micro-powder reaction device

PendingCN111804241AEven by forceImprove sealingFeed devicesFatigue damageMechanical engineering

Owner:NANJING TIANSHI NEW MATERIAL TECH

Display substrate, display panel, display device and manufacturing method

InactiveCN107025848ABorderless Viewing ExperienceReduce parallaxNon-linear opticsIdentification meansDisplay deviceLight-emitting diode

Owner:BOE TECH GRP CO LTD +1

Preparation of material capable of slowly releasing vitamin C

InactiveCN101352187ACosmetic preparationsFruit and vegetables preservationVitamin CSolvent

Owner:CHENGDU SOMO NANO TECH

Underground electric vehicle with warning lamp

InactiveCN108944971APlay a warning roleReasonable structural designMining devicesUnderground transportElectricityElectric vehicle

Owner:ZIBO HUAYUAN MINING CO LTD

Stacking robot predictive maintenance method

ActiveCN110696049AImage enhancementManipulatorPattern recognitionEngineering

Owner:CHANGZHOU INST OF MECHATRONIC TECH

Data filtering engine and system and filtering method

PendingCN110287174AReduce communication costsSimple processDigital data information retrievalSpecial data processing applicationsOriginal dataFiltering rules

Owner:北京善义善美科技有限公司

Method for preparing 5-bromomethyl-2,3-dimethyl pyridine dicarboxylate through ultraviolet light catalysis

InactiveCN111004174AImprove conversion rateHigh selectivityOrganic chemistryOrganic solventUltraviolet lights

Owner:中化安全科学研究(沈阳)有限公司

Processing method and application of cerasus humilis fruit powder

InactiveCN103783423AFull of nutritionHigh in calciumFood preparationPlant ingredientsBiotechnologyNutrition

Owner:白城市林业科学研究院

Physical examination report interpretation method and device based on artificial intelligence, equipment and medium

PendingCN113868412AInterpretation is convenient, fast and efficientGood physical examinationDigital data protectionSpecial data processing applicationsEngineeringArtificial intelligence

Owner:深圳平安智慧医健科技有限公司

Device for quickly testing hardware board card of motor driver

PendingCN112557879AShorten the design and development cycleMeet the economic and practical requirementsElectronic circuit testingMeasurement instrument housingComputer hardwareDesign testing

Owner:JIANGXI HONGDU AVIATION IND GRP

Method for realizing programmable real-time logic in programmable logic controller and system thereof

InactiveCN103901808AFlexible real-time logicFlexible logicProgramme control in sequence/logic controllersProgrammable logic controllerPersonal computer

Owner:SCHNEIDER ELECTRIC IND SAS

Duck egg white polypeptide beverage and preparation method thereof

InactiveCN106578790AFull of nutritionSmooth tasteFood scienceYolkEnzymatic hydrolysis

Owner:FOSHAN UNIVERSITY

Settlement engine of integrated services under convergent networks

InactiveCN103873264ACalculation method is simpleMetering/charging/biilling arrangementsIn-memory databaseProtocol Application

Owner:ACAD OF BROADCASTING SCI SARFT

Preparation method of textile fabric louver curtain sheet

InactiveCN109652989AGood anti-ultraviolet aging performanceGood antibacterial and antifungal functionsLight resistant fibresConjugated synthetic polymer artificial filamentsUltravioletWastewater

Owner:杭州雅姿窗饰材料有限公司

Method for detecting hydrophobicity of Omalizumab

ActiveCN111024862AThe peak time is suitableAppropriate detection timeComponent separationFluid phaseHydrophobe

Owner:MAB VENTURE BIOPHARM CO LTD

Non-woven cloth fixed-width cutting device for non-woven cloth interlayer fence

InactiveCN106436268AHigh hardnessAvoid deformationSevering textilesEngineeringNonwoven fabric

Owner:防城港市宝兴工艺品有限公司

Frame tail structure and motorcycle

InactiveCN113022765AHigh strengthMotorcyclesVehicle frameTail structure

Owner:CHONGQING ZONGSHEN INNOVATION TECH RES INST CO LTD

Environment-protecting Traditional Chinese Medicine cleaning equipment

InactiveCN112108444ARealize the stirring functionAffect circulationToothed gearingsPortable liftingMedicinal herbsWater resources

Owner:田福来

Wireless LCD device for displaying images and an operation method thereof

InactiveCN1780391ATelevision system detailsConnection managementComputer hardwareLiquid-crystal display

Owner:SAMSUNG ELECTRONICS CO LTD

Automatic drill rod device

InactiveCN104588718ASimple structureReasonable structureLarge fixed membersBoring/drilling machinesReciprocating motionEngineering

Owner:WUXI BEST PRECISION MACHINERY

Base bottom plate large-space concrete mixing material and mixing method thereof

InactiveCN106915927AShorten the setting timeImprove adhesionFiberCrack resistance

Owner:TIANJIN ZEYUAN CONCRETE CO LTD

Multiparameter collection system for assisting grip strength ball rehabilitation training

InactiveCN107951487AIncrease motivationSpeed up recoveryPressure sensorsMuscle exercising devicesCollection systemEngineering

Owner:UNIV OF SHANGHAI FOR SCI & TECH

OTT set top box testing method

InactiveCN104135661ATelevision systemsSelective content distributionRemote controlHDMI

Owner:TAICANG T&W ELECTRONICS CO LTD

PVC (Polyvinyl Chloride) optical film

InactiveCN107513236AReduce one processReduce defective rateDioctyl terephthalateOptoelectronics

Owner:陈向明

Hemp blended yarn weaved fabric

InactiveCN105970413ASoft touchImprove flatnessWoven fabricsYarnSpecific function

Owner:JIANGSU YAOZHANG SPORTING GOODS

Seat waist support and automobile seat with same

PendingCN112389292AImprove comfortMeet the needs of useBack restsCar seatEngineering

Owner:CHONGQING YANFENG ADIENT AUTOMOTIVE COMPONENTS CO LTD

Controller of magnetic suspension train

InactiveCN101239592AImprove performanceComfortable riding environmentElectric vehicle charging technologyElectric propulsionCommunication unitControl system

Owner:NAT UNIV OF DEFENSE TECH

Watchband testing device

PendingCN113109154AEasy to operateFew stepsMaterial strength using tensile/compressive forcesStructural engineeringMechanical engineering

Owner:ZHUHAI ROSSINI WATCH IND

Analog-to-digital converter and analog-to-digital conversion method

PendingCN114337672AAnalogue/digital conversionElectric signal transmission systemsConvertersControl signal

Owner:HANGZHOU HIKVISION DIGITAL TECH

Handheld drilling machine provided with internally installed silencer device

PendingCN110116229AReduce volumeEasy to storePortable power-driven toolsPortable drilling machinesMechanical equipmentEngineering

Owner:天津万德矿山机械有限公司

Preparation method of clay mineral bedrock soil cultural relic repairing material

ActiveCN111393120AMeet the needs of useHigh reactivitySoil scienceClay minerals

Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Chinese medicine composition for treating damp-heat stagnation acne

InactiveCN103494924ADermatological disorderPlant ingredientsPolysphaeria macrophyllaThalictrum

Owner:李达

Method for enlarging machine tool swing angle stroke by using composite swing angle

InactiveCN102101244AExtended swivel strokeLarge fixed membersEngineeringMachine tool

Owner:SHENYANG AIRCRAFT CORP

Separation method and device for oilfield complex drive produced liquid

ActiveCN106422424AShorten speedReduce gravity settling timeLiquid separationCycloneHigh density

Owner:NORTHEAST GASOLINEEUM UNIV

Method and device for authenticating user identity in voice customer service

ActiveCN107508782APrevent leakageTransmissionComputer terminalClient-side

Owner:ALIBABA GRP HLDG LTD

Dibenzothiophene derivative, preparation method and application thereof

ActiveCN107033123AWide linear rangeImprove accuracyOrganic chemistryFluorescence/phosphorescenceFluorescenceWater content

Owner:NANJING UNIV OF INFORMATION SCI & TECH

Eight-function automobile, method for achieving functions and telescopic wheel assembly for automobile

ActiveCN104973126AVehicle fittings for lifting and manoeuvringVehicle fittings for liftingControl systemMulti link

Owner:张伟文

Computer simulation method for intelligent transportation

ActiveCN111881548ARapid positioningConvenient statisticsData processing applicationsDesign optimisation/simulationThe InternetData harvesting

Owner:GUANGDONG UNIV OF TECH

Core using machinery control rod combination boron injection system as second reactor shutdown system

ActiveCN103474098AMeet mutual independenceEnsure safetyNuclear energy generationShieldingNuclear reactorBoron

Owner:NUCLEAR POWER INSTITUTE OF CHINA

Efficient refining method of caprolactam

ActiveCN108409658AEasy to storeEasy to transportLactams separation/purificationDistillationGas phase

Owner:河北美邦工程科技股份有限公司

PUCCH resource allocation method and device

ActiveCN109547178ATake advantage ofEasy to FeedbackSignal allocationWireless communicationResource allocationData terminal equipment

Owner:DATANG MOBILE COMM EQUIP CO LTD

Preparation method of core-shell magnetic titanium silicalite molecular sieve catalyst as well as product and application of core-shell magnetic titanium silicalite molecular sieve catalyst

ActiveCN114272955ALarge particle sizeImprove stabilityMolecular sieve catalystsCatalyst activation/preparationMolecular sievePtru catalyst

Owner:BEIJING UNIV OF CHEM TECH

Method for extracting iron by carrying out suspension magnetizing roasting and cyanide breaking-magnetic separation on high-iron cyanidation tailings

ActiveCN111485099ADecompose thoroughlyFully contactedSolid separationMechanical material recoveryCyanideSlag

Owner:NORTHEASTERN UNIV

Alcohol-free transparent perfume composition

ActiveCN103637942AImprove stabilityAvoid demulsificationCosmetic preparationsToilet preparationsWater basedAlcohol free

Owner:AGATE PERFUME MINGGUANG

Portable property management equipment based on Internet of Things

ActiveCN111124049AEasy to slideEasy flipDigital data processing detailsComputer hardwareThe Internet

Owner:NANJING LANLIN SMART BUILDING TECH CO LTD

Error code tester and test system suitable for various types of optical modules

ActiveCN110855353AMeet testing needsEasy to testElectromagnetic transmissionOptical ModuleTester device

Owner:CHINA ELECTRONIS TECH INSTR CO LTD

Performance test system and performance test method for top-mounted air-conditioning system

ActiveCN105115738AReduce in quantityReduced footprintVehicle testingDifferential pressureEngineering

Owner:上海佐竹冷热控制技术有限公司

Control device for linear electromagnet valve of electric drive cooling system for new energy automobile

ActiveCN111022749AEasy to controlStable controlOperating means/releasing devices for valvesNew energyControl cell

Owner:DONGFENG MOTOR CORP HUBEI

Method and system for obtaining flicker transmission coefficient of grid connection of photovoltaic power stations

ActiveCN103701152AAccurately obtained flicker transfer coefficientSingle network parallel feeding arrangementsPhotovoltaic energy generationElectricityInduction motor

Owner:STATE GRID CORP OF CHINA +3

Display substrate, manufacturing method thereof, display device and driving method of display device

ActiveCN109976584AImprove uniformityImprove the display effectInput/output processes for data processingCapacitanceDisplay device

Owner:BOE TECH GRP CO LTD +1

Power transmission line bundled connector sag adjustment tool

ActiveCN103915782AReduce labor intensityReduce in quantityApparatus for overhead lines/cablesElectric power transmissionEngineering

Owner:STATE GRID CORP OF CHINA +1

Improved time relay

ActiveCN104599902AImprove setting accuracyEasy to adjustRelaysResistance capacitanceTime delays

Owner:ZHEJIANG TENGEN ELECTRIC

Warehouse position visual management method based on GCP platform

ActiveCN110602443AMeet real-time control needsImprove work efficiencyClosed circuit television systemsLogisticsComputer visionTime control

Owner:JIANGSU ELECTRIC POWER CO +2

Systems and methods comprising smart sample catcher for drilling operations

InactiveCN111247307ALiquid degasification regulation/controlLiquid degasification by filtrationWell drillingMechanical engineering

Owner:SAUDI ARABIAN OIL CO

Hot rolling laminar cooling device with inner driving plunger and inner driving method thereof

ActiveCN110125192AWork cooling devicesMetal rolling arrangementsFailure rateLaminar cooling

Owner:BAOSHAN IRON & STEEL CO LTD

Global motion estimation method and device of image sequence

ActiveCN105427347AGuaranteed robustnessAvoid estimated impactImage enhancementImage analysisPattern recognitionResidual Blocks

Owner:LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC

Method for synthesizing poly-dopamine-modified MALDI target plate and application of poly-dopamine-modified MALDI target plate

InactiveCN103969325AThe synthesis method is simpleGood biocompatibilityMaterial analysis by electric/magnetic meansTitanium sulphateTitanium ion

Owner:FUDAN UNIV

Method for evaluating data exception degree of heavy metal content in soil

ActiveCN106124729AReduce testing costsAccurate and reliable survey dataEarth material testingThree levelSoil heavy metals

Owner:北京瑞美德环境修复有限公司

Test method and device for safety equipment and test system

ActiveCN110380932AReduce difficultyFully automatedData switching networksComputer hardwareTest fixture

Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

LSTM trajectory prediction method combining space-time factors and based on graph neural network

ActiveCN113111581ANumber of extended positionsImprove forecast accuracyData processing applicationsDesign optimisation/simulationGraph neural networksArtificial intelligence

Owner:CHONGQING UNIV OF POSTS & TELECOMM

Preparation method of ferrocene-modified Fenton catalyst for iron-based metal-organic framework material

ActiveCN107519934AEnhanced mass transferRapid responseOrganic-compounds/hydrides/coordination-complexes catalystsWater contaminantsHydrogenFerrocene

Owner:UNIV OF JINAN

Multifunctional fan heater

ActiveCN104456787AEasy to dryIncreased body drying speedMechanical apparatusSpace heating and ventilation safety systemsElectricityEngineering

Owner:赵洪旺

Minitype automatic apparatus for recycling waste water without energy consumption

InactiveCN1959104ANo power consumptionRealize unconscious automatic recyclingReciprocating piston enginesWastewaterMechanical engineering

Owner:唐永刚 +1

Nanometer micelle capable of intelligently releasing medicine as well as preparation method and application thereof

ActiveCN102391517ASuitable chain complianceImprove biological activityPowder deliveryPharmaceutical non-active ingredientsPolyethylene glycolAminolysis

Owner:SUN YAT SEN UNIV

Electronic ear thermometer without measuring key

ActiveCN110567610AImprove the bactericidal effectBody temperature measurementThermometer testing/calibrationBlack-body radiationWater storage tank

Owner:安徽汉诺医疗科技有限公司

Commercial-power streetlight control system

ActiveCN107911917AEffective controlAvoid wastingMechanical apparatusElectrical apparatusElectrical batteryMathematical model

Owner:GUIZHOU CITY DEJIANG COUNTY YUNTAO TECH CO LTD

Water-fertilizer all-in-one machine

InactiveCN104541731AImpact forceConsistent concentrationPressurised distribution of liquid fertiliserWater flowEngineering

Owner:张江龙

Method for accurately calculating quantity of tiles on tile roof of ancient building based on revit and dynamo

InactiveCN113032869AAccurately calculate the actual number of wattsInput parameters streamlinedGeometric CADDrawing from basic elementsArchitectural engineeringStructural engineering

Owner:张有志

Starch type feed capable of increasing oestrus performance of replacement gilts

ActiveCN108174989AImprove growth performanceIncrease estrus rateFood processingAnimal feeding stuffFodderReplacement gilt

Owner:INST OF ANIMAL HUSBANDRY & VETERINARY FUJIAN ACADEMY OF AGRI SCI

Manufacturing method of aluminum alloy formwork for building

InactiveCN112139758AReduce processing stepsImprove efficiencyPolishingSurface roughness

Owner:SNTO TECH GRP

Paste preparation method based on vacuum filtration thickening and dehydrating and preparation system

PendingCN108975801ATroubleshoot grading issuesGuarantee that the composition of the particle size remains unchangedEngineeringTailings

Owner:SHANDONG GOLD MINING CO LTD

Rubbish flying ash cement kiln co-treatment and water resource utilization system

ActiveCN105080935ANo secondary pollutionAvoid pollutionSolid waste disposalThree levelResource utilization

Owner:湖州京兰环保科技有限公司

Double-chamber emanometer calibrating device

PendingCN112213762AX/gamma/cosmic radiation measurmentControl signalUSB

Owner:成都核盛科技有限公司

Emergency hammer with lighting lamp

InactiveCN103737555AImprove securityEasy to useLighting elementsPortable percussive toolsEngineeringControl circuit

Owner:凌新华

Hazardous article storage cabinet for laboratory

ActiveCN110732354AImprove storage securityPrevent dumpingHazardous material storageElectric machineryDrive motor

Owner:惠特科学技术有限公司

Repairing method for steam turbine oil pump flywheel shaft through laser cladding

InactiveCN105420721AExtended service lifeReduce consumptionMetallic material coating processesEconomic benefitsEngineering

Owner:XINJIANG HUIXIANG LASER TECH

High-performance aluminum plate heat dissipating device

PendingCN108925102AHelp heat transferIncrease contact areaCooling/ventilation/heating modificationsEngineeringHeat spreader

Owner:江苏英杰铝业有限公司

Shared protection control method and device of optical data unit (ODU) loop

InactiveCN101998178AFine-grained protectionImprove resource utilizationMultiplex system selection arrangementsTime-division multiplexGranularityComputer science

Owner:ZTE CORP

System and method for playing learning materials

InactiveCN101650880AImprove memory learning effectElectrical appliancesSpecial data processing applicationsLearning dataMultimedia

Owner:INVENTEC CORP

Adsorbing material for efficiently and stably removing aldehydes in epoxypropane and preparation method of adsorbing material

ActiveCN114749160ASolve the difficult problem of aldehyde removalEasy to operateIon-exchange process apparatusOrganic chemistryBenzenePropylene oxide

Owner:FUZHOU UNIV +1