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.

Production method of improved reverse osmosis filter membrane base cloth

ActiveCN108893991AAvoid deformationGood shape retentionBiochemical fibre treatmentFibre typesFoaming agentPolyethylene glycol

Owner:ZHEJIANG LVLONG NEW MATERIAL CO LTD

Hemostatic components

ActiveCN110313969BBronchoscopesLaryngoscopesLung lobeEndoamnioscopy

Owner:XIANGYA HOSPITAL CENT SOUTH UNIV

An Intelligent Gas Meter with Temperature Compensation

ActiveCN102944268BSimple structureEasy to operateVolume variation compensation/correction apparatusVolume/mass flow by differential pressurePaymentGas meter

Owner:SICHUAN HAILI INTELLIGENT & TECH

A road and bridge side slope greening watering device

ActiveCN111296246BFreely adjust the spraying angleImprove sprinkler irrigation effectClimate change adaptationWatering devicesWater resourcesEnvironmental engineering

Owner:江苏华淼电子科技有限公司

Seizure Monitoring System

ActiveCN109620248BSolve the problem of low monitoring accuracyImprove monitoring accuracyDiagnostic recording/measuringSensorsData signalEngineering

Owner:杭州瑞尔唯康科技有限公司

A Numerical Simulation Method for Uplink and Downlink Wavefields of Submarine Node Seismic Data

ActiveCN108181652BSeismic signal processingOcean explorationWave field

Owner:OCEAN UNIV OF CHINA

A kind of anti-electromagnetic radiation green functional wooden door

ActiveCN107339052BReduce weightReasonable weightWood layered productsDoor leavesMetal fibersElectromagnetic radiation

Owner:吉林省锦鹿家具有限公司

Navigation box capable of dialing IP phone, voice navigation system and method

ActiveCN104121913BLow costReduce the risk of drivingInstruments for road network navigationTelephone data service arrangmentsDriving riskNavigation system

Owner:GUANGDONG ECAR TELEMATICS SERVICE

dry etching method

ActiveCN102254812BReduce etchingLess quantitySemiconductor/solid-state device manufacturingUltrasound attenuationRadio frequency

Owner:SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT

A kind of preparation method of fine grain high specific gravity tungsten alloy

ActiveCN109182871BAchieve complete meltingIncrease profitAdditive manufacturingIncreasing energy efficiencyOxygen contentRapid prototyping

Owner:MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS

Method for designing stator winding to transform universal electric motor by request of load characteristics

ActiveCN101075757BManufacturing dynamo-electric machinesWindings conductor shape/form/constructionFrequency changerElectric machine

Owner:徐志瑶

Laser beam shaping control system for forming optical trap

ActiveCN103293679BAchieve shapingEasy to operateOptical elementsFluorescenceEffect light

Owner:SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI

A method for generating mixed jets and its drainage structure

InactiveCN104841297BImprove versatilityDifferent decontamination effectsFlow mixersMixing methodsJet flowThin layer

Owner:汪勇

A Method for Improving the Uniformity of Gate Oxide Thickness

ActiveCN105225934BImprove thickness uniformityUniform thicknessSemiconductor devicesChemical reactionDangling bond

Owner:SEMICON MFG INT (SHANGHAI) CORP

A method for efficiently collecting and purifying germination stimulators of sunflower rowan using aeroponics and solid-phase extraction techniques

ActiveCN110583657BRich varietyIncrease concentrationBiocideFlowers cultivationBiotechnologyHelianthus annuus seed

Owner:ZHEJIANG UNIV

Electric drives and electric equipment

ActiveCN106849782BReduced requirements for performance consistencyAvoid manpowerElectric motor controlField or armature current controlElectricityCurrent meter

Owner:UNIV OF SHANGHAI FOR SCI & TECH

Method for ecologically improving water quality of water delivery type lake

InactiveCN102219304BImprove settlement performanceImprove purification effectStream regulationSustainable biological treatmentWater qualityEngineering

Owner:HOHAI UNIV

Pressure swing absorption decarbonization process and apparatus

ActiveCN100355484CIncrease profitReduce difficultyProductsReagentsSorbentProduct gas

Owner:杭州东安科技有限公司

Method for configuring resources, mobile terminal, network side equipment and media

ActiveCN110636539BReduce power consumptionReduce unnecessary measurementsPower managementNetwork traffic/resource managementComputer networkSignal quality

Owner:VIVO MOBILE COMM CO LTD

Ceiling filter cotton treatment agent and preparation method

ActiveCN107619457BImprove structural stabilityImprove breathabilityVegetal fibresIsooctyl acrylateFilter effect

Owner:LIAONING FIXED STAR FINE CHEM

Least square area network color-homogenizing method of aerial remote sensing image

ActiveCN102129669AEasy to specifyHue Difference EliminationImage enhancementHueRemote sensing

Owner:WUHAN UNIV

Cigarette tobacco leaf composition without additive and high-grade cigarette products prepared from composition

ActiveCN102283436BReduce the harm of smokingTobacco treatmentSecretionBody fluid

Owner:CHINA TOBACCO ZHEJIANG IND

An ultra-simplified spwm modulation system based on square wave beats in qpsk communication

InactiveCN108243134BReduce computing loadImprove stabilityPhase-modulated carrier systemsSquare waveformLow power dissipation

Owner:WUHAN UNIV

Link management method

InactiveCN100525291CSimple operation and maintenanceReduce interactionTransmissionMessage routingLink management

Owner:HUAWEI TECH CO LTD

A two-stage grain primary cleaning equipment

ActiveCN107838035BImprove air qualitySave human effortSievingGas current separationAgricultural engineeringMechanical engineering

Owner:JIESHOU RUNAN MACHINERY

A square can empty can production line and production method

ActiveCN109127939BIncrease productivityAvoid accumulationShaping safety devicesMetal working apparatusProcess engineeringPothead

Owner:SICHUAN GAOSHENG PACKAGING PROD

Pixel circuit and display panel

ActiveCN111369941BHigh light transmittanceStatic indicating devicesScan lineData signal

Owner:WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

A kind of method for in vitro regeneration of chrysanthemum chrysanthemum strain

ActiveCN105706933BMaintain germplasm characteristicsEasy to get materialsHorticulture methodsPlant tissue cultureAxillary budBud

Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Self-locking device for rotating components and construction machinery using the self-locking device

ActiveCN103277405BLifting devicesPivotal connectionsEngineeringSelf locking

Owner:XCMG FIRE FIGHTING SAFETY EQUIP CO LTD

Method and apparatus for efficient data transmission control in wireless voice-over-data communication system

InactiveCN1158832CReduce or eliminate distortionInterconnection arrangementsNetwork traffic/resource managementData segmentCommunications system

Owner:QUALCOMM INC

A kind of carbon carbon/rubber composite material preparation method

ActiveCN107266733BRealize secondary dispersionImprove the level of micro-dispersionPolymer scienceProduct gas

Owner:QINGDAO UNIV OF SCI & TECH

A parking control method, device and system

ActiveCN110281890BImprove reliabilityStable controlBraking action transmissionAutomatic initiationsMotor speedControl engineering

Owner:ZHEJIANG GEELY HLDG GRP CO LTD +1

Wet chemical preparation process of multi-component mixed oxide

InactiveCN1280181COxide/hydroxide preparationColloidal chemistry detailsMixed oxideDoped oxide

Owner:SICHUAN UNIV

High-wear resistant low-cobalt powder metallurgical valve seat

ActiveCN101906592BImprove thermal conductivityHigh strengthMachines/enginesLift valveChemical compositionWear resistant

Owner:YIZHENG CHANGDA POWDER METALLURGY PROD CO LTD

A method for preparing β-nicotinamide mononucleotide and its sodium salt

ActiveCN110845548BHigh yieldEasy to purifySugar derivativesSugar derivatives preparationChemical synthesisNicotinamide riboside

Owner:武汉一若生物材料有限公司

Tanning method free of lime, sulfide, chloride ion and heavy metal chromium pollution

ActiveCN103243182BRemove pollutantsReduce processing costsTanning treatmentPre-tanning chemical treatmentChromium freeEconomic benefits

Owner:SICHUAN UNIV

Cookware with temperature sensor and identification of cooking zones

ActiveCN105764386BEnsure cooking resultsSimple designBoiling over preventionRefuse receptaclesProcess engineeringSignal processing

Owner:SEB SA

Transparent loading method of multi-type object code under many-core heterogeneous architecture

ActiveCN112631662BUnified execution processImprove usabilityBootstrappingEnergy efficient computingProgram segmentData segment

Owner:JIANGNAN INST OF COMPUTING TECH

Method, related equipment and system for transmitting information

ActiveCN109167629BAvoid conversionImprove transmission performancePolarisation multiplex systemsLine-of-sight transmissionInformation transmissionStation

Owner:HUAWEI TECH CO LTD

A mold and method for preparing an extruded plastic optical fiber with a spider web structure

InactiveCN101570051BIntegrity guaranteedSmall bending radiusOptical articlesNitrogenPlastic optical fiber

Owner:JIANGSU HENGTONG PHOTOELECTRIC

A kind of video object classification method and device

ActiveCN112070044BEasy access to deep featuresEffective classificationCharacter and pattern recognitionNeural architecturesFeature extractionDimensionality reduction

Owner:BEIJING SHENRUI BOLIAN TECH CO LTD +1

A kind of start-up control method of air conditioner and outdoor fan

ActiveCN111336584BOvercoming Noise DefectsImprove reliabilityMechanical apparatusSpace heating and ventilation safety systemsControl theoryMechanical engineering

Owner:HISENSE (GUANGDONG) AIR CONDITIONER

Workpiece with three-dimensional pattern

InactiveCN103158431BImprove aestheticsLight effect designsLight beamPartial reflection

Owner:COMPAL ELECTRONICS INC

A bridge pier safety detection water surface control device

ActiveCN110505774BImprove direct contact with waterGuaranteed stabilityCasings/cabinets/drawers detailsHermetically-sealed casingsWater sourceControl cell

Owner:上海浦江桥隧运营管理有限公司 +1

Series-wound type poly-generation technology for coal chemical industry

ActiveCN102191083BGood energy saving effectOrganic compound preparationEnergy inputChemical reactionEngineering

Owner:PETROCHINA CO LTD +1

Data release system and method

ActiveCN107872515BReal-time acquisitionImprove real-time performanceTransmissionComputer networkThe Internet

Owner:GREE ELECTRIC APPLIANCES INC

Image edge pixel optimization method, device and device

ActiveCN114387292BAchieve optimizationImprove optimization efficiencyImage enhancementImage analysisComputer graphics (images)Shortest path search

Owner:北京市农林科学院信息技术研究中心

Labyrinth restrictor

InactiveCN103968182BLow costReduce flow ratePipe elementsEngineeringMechanical engineering

Owner:林文斌

Spout caps, spouts and containers with spouts

ActiveCN111051209BAirtight and reliableEasy to openClosure capsBagsEngineeringMechanical engineering

Owner:HOSOKAWA YOKO CO LTD

A high-speed low-loss magnetic rotor

ActiveCN111756140BExtended service lifeNot easy to fall offMagnetic circuit rotating partsCooling/ventillation arrangementElectric machineEngineering

Owner:HAIAN JULI MAGNETIC MATERIAL CO LTD

Diimonium salt compound and use thereof

InactiveCN100430374CImprove heat resistanceGood light fastnessOrganic chemistryAzomethine dyesAmmonium compoundsHydrogen atom

Owner:NIPPON KAYAKU CO LTD

Object Tracking Method and Device

InactiveCN104915964BImage analysisParallaxFeature vector

Owner:RICOH KK

Third-party message callback method, device, server and storage medium

ActiveCN110413425BSolve technical problems that cannot be reached accuratelyAccurate arrival improvesInterprogram communicationMessage queueThird party

Owner:SHENZHEN LEXIN SOFTWARE TECH CO LTD

A Method of Generating Weather Forecast Words Based on Speech Recognition Technology

ActiveCN112764126BEasy to receiveAvoid travel inconvenienceRainfall/precipitation gaugesWeather condition predictionSimulationSpeech sound

Owner:象辑科技股份有限公司

Frequency characteristic measurement device, controller and frequency characteristic measurement method

PendingCN111751616AHigh measurement accuracyReduced measurement timeProgramme controlTrigometric functionsControl theoryFrequency characteristic

Owner:FANUC LTD

Array substrate, its manufacturing method and electronic device applying same

InactiveCN1829399ANo pollutionElectroluminescent light sourcesSolid-state devicesThin membraneElectron

Owner:TPO DISPLAY

A crawler pizza oven

ActiveCN105104459BTake advantage ofTo achieve the purpose of energy saving and high efficiencyBaking ovenControl systemWorking temperature

Owner:VESTA GUANGZHOU CATERING EQUIP CO LTD

A DC microgrid secondary voltage regulation system and its control method

ActiveCN105720572BGuaranteed cost-effective operationQuality improvementDc source parallel operationMicrogridElectrical battery

Owner:TAIYUAN UNIV OF TECH

A method, device and system for exhaust air heat recovery and antifreeze control

ActiveCN110925953BEnergy recovery in ventilation and heatingMechanical apparatusFresh airEngineering

Owner:南京晶华智能科技有限公司

A fully automatic high-efficiency glass film laminating machine

InactiveCN102976629BSimple structureCompact structureAgricultural engineeringFully automated

Owner:ZHONGSHAN YIQI HARDWARE MACHINERY MFG

Method and device for configuring apn information

ActiveCN103369510BTroubleshoot connection failuresImplement automatic configurationAssess restrictionConnection managementBiological activationWorld Wide Web

Owner:ZTE CORP

Novel herbicidal composition for controlling weeds in paddy fields and preparation method thereof

InactiveCN106070388BReduce field useImprove stabilityBiocideDead animal preservationGlycerolChaff

Owner:INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI

A monitoring and early warning method for electric vehicle battery fire based on dynamic data

ActiveCN112986836BAvoid fireTesting electric installations on transportElectric-vehicle batteryElectrical battery

Owner:UNIV OF SCI & TECH BEIJING

A np-type cmos avalanche photodiode with deep n-well

ActiveCN103887362BIncrease speedHigh response frequencySemiconductor devicesCMOSFrequency response

Owner:CHONGQING UNIV OF POSTS & TELECOMM

An electric vehicle torque control method, device and vehicle

ActiveCN110733354BLow costReduce complexitySpeed controllerElectric energy managementElectric machineryEngineering

Owner:GREAT WALL MOTOR CO LTD

Production Well Equipment for Underground Coal Gasification Process and Its Application

ActiveCN106089179BImprove the operating environmentIncreased operating lifeSurveyConstructionsProduct gasProcess engineering

Owner:ZHONGWEI SHANGHAI ENERGY TECH CO LTD

Application of septin1 gene to detection of nosema bombycis

ActiveCN104017891BEasy to useIncrease production capacityMicrobiological testing/measurementMicroorganism based processesBiotechnologyNosema bombycis

Owner:SOUTH CHINA AGRI UNIV

Baby carrier harness

InactiveCN1549684BFreedom of movementQuick connectionCarriage/perambulator accessoriesChildren furnitureEngineeringSafety harness

Owner:STOKKE AS

A dock for a portable hard disk and a method for accessing content on a host device using the dock

ActiveCN102782666AEnergy efficient ICTCarrier constructional parts dispositionOperating system

Owner:CREATIVE TECH CORP

A device for measuring land subsidence

InactiveCN102235887BSimple structureAccurate measurementUsing optical meansConverting sensor output opticallyGratingGround settlement

Owner:SHANGHAI KNP CHEM +1

System based on two layer VPN foreign medium communication and method thereof

InactiveCN100550814CAvoid the phenomenon of learning useless MAC addressesImprove maintainabilityNetworks interconnectionTransport layerInterconnection

Owner:HUAWEI TECH CO LTD

A compound eye type ultra-minimally invasive laparoscopic surgery device

ActiveCN109171612BAvoid damageNo scarSurgical needlesLaproscopesOphthalmologyScarless surgery

Owner:JOYMEDICARE (SHANGHAI) MEDICAL ELECTRONIC TECH CO LTD

Compound Mongolian medicine preparation for treating coronary heart disease and its preparation process

ActiveCN103656446BHydroxy compound active ingredientsUnknown materialsCoronary artery diseasePalpitations

Owner:INNER MONGOLIA MEDICAL UNIV

Hand-hold communication appliance and its short message privacy method

InactiveCN101321332BReduce misunderstandingNear-field transmissionUser identity/authority verificationComputer moduleHand held

Owner:FU TAI HUA IND SHENZHEN

Steel plate submerged arc welding method

ActiveCN107876941BImprove work efficiencyArc welding apparatusWelding processSteel plates

Owner:HAIYANG CIMC RAFFLES OFFSHORE +2

A risk control platform and risk control management method for steel trade financial business

ActiveCN107491885BReduce shockFlexible decouplingResourcesDatabase modelsRisk ControlReal time analysis

Owner:SHANGHAI GANGFU E COMMERCE

Flyback power supply circuit and its primary side control circuit

ActiveCN109217677BSmall sizeLow costDc-dc conversionElectric variable regulationControl engineeringControl theory

Owner:RICHTEK TECH

A kind of enzyme-phospholipid microcapsule preparation method beneficial to membrane enzyme mosaic and its activity research

ActiveCN107144696BEasy to embedIncrease in sizeMicrobiological testing/measurementBiological testingMembrane enzymesSoybean Phospholipids

Owner:LINYI UNIVERSITY

Video detection method and device

ActiveCN105975939BImplement automatic detectionCharacter and pattern recognitionSample imageImage sequence

Owner:度链网络科技(海南)有限公司

High barrier and high thermal conductivity packaging structure for flexible oled display and preparation method thereof

ActiveCN109920934BIncrease heat transfer rateReduce the temperatureSolid-state devicesSemiconductor/solid-state device manufacturingDevice materialEngineering

Owner:JIANGSU SIDIKE NEW MATERIALS SCI & TECH CO LTD

Spherical zirconium silicate nanometer crystal preparation method

ActiveCN102502675BNarrow particle size distributionReduce manufacturing costNanotechnologySilicon compoundsProcess equipmentReaction temperature

Owner:江苏华莱明新能源科技有限公司

An emergency power supply method for electric vehicles based on fuzzy k-means algorithm

ActiveCN105160151BLow maintenanceImprove active gathering abilitySpecial data processing applicationsCluster algorithmElectricity

Owner:STATE GRID CORP OF CHINA +3

A calligraphy musculoskeletal training hand strap and its use method

ActiveCN106267729BEasy to use state switchingResilient force resistorsTv watchingEngineering

Owner:王厚坤

A multi-antenna Internet of things information transmission method

ActiveCN107846464BImprove reliabilityGuaranteed reliabilityRadio transmissionError prevention/detection by diversity receptionTransmission technologyEngineering

Owner:SHENZHEN UNIV

A kind of preparation method of pani/mxene/carbon cloth composite wave-absorbing material

ActiveCN110845844BPrevent oxidationImprove absorbing performanceOther chemical processesAnilineElectronic equipment

Owner:DONGHUA UNIV

A relay deployment method supporting two-stage transmission of vehicle data

ActiveCN110913366BReduce power consumptionRealize localized deploymentPower managementParticular environment based servicesIn vehicleTrunking

Owner:HUBEI UNIV +1

A semiconductor packaging method

ActiveCN114171395BRealize full packageAvoid modificationSemiconductor/solid-state device detailsSolid-state devicesGold ballPerformance enhancement

Owner:SHENZHEN SIPTORY TECH CO LTD

Water purified agent for aeration, sterilizing of aquatic product culture and equipment thereof

InactiveCN100355669CSolve the problem of hypoxiaAvoid decompositionWater/sewage treatment by substance additionWater/sewage treatment using germicide/oligodynamic-processDecompositionAquatic product

Owner:ZHEJIANG UNIV

A pipeline structure for the transportation of chemical high-temperature waste gas

ActiveCN112007446BRealize cooling treatmentEasy to follow upDispersed particle filtrationTransportation and packagingExhaust fumesProcess engineering

Owner:湖北天基生物能源科技发展有限公司

A control system for automatic detection equipment of nuclear power plant pressure vessel

ActiveCN105810262BReduce in quantityReduce electromagnetic interferenceNuclear energy generationNuclear monitoringDistributed structureNuclear power

Owner:CHINA NUCLEAR POWER OPERATION TECH +1

A nitrogen-doped porous carbon material with hierarchical pore structure and its preparation method and application

ActiveCN108622877BUniform impregnationQuick breakdownHybrid capacitor electrodesNano-carbonCelluloseMetal nitrate

Owner:CHINA UNIV OF MINING & TECH

A kind of biomimetic matrix hydrogel mask and preparation method thereof

ActiveCN109453078BIncrease moisture contentImproves antioxidant activityCosmetic preparationsToilet preparationsBiotechnologyCollagenan

Owner:THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV +1

Speed control module and speed control circuit of brush direct-current tubular motor

InactiveCN101860306BSolve the application problems that can only be output in a small torque rangeNovel structural designField or armature current controlElectric machineComputer module

Owner:HANGZHOU SHTECH

A method, device and communication system for receiving and transmitting information

ActiveCN104125036BReduce wasteReduced conversion timeError preventionWireless communicationCommunications systemSubframe

Owner:CHINA MOBILE COMM GRP CO LTD

A method for equal power control of photovoltaic power generation system based on optimized fibonacci sequence

ActiveCN110829490BSmall power error rateFast convergenceSingle network parallel feeding arrangementsPhotovoltaic energy generationFill factorElectrical current

Owner:苏州海鹏科技有限公司

A smart energy heating system based on multi-source power and IDC collaboration

ActiveCN112212430BIntelligent and efficient integrationIncrease profitHeat pumpsMeasurement devicesEngineeringEnergy source

Owner:深圳利行科技有限公司

A Fragment Rewriting Method Used in Data Deduplication System

ActiveCN103473150BLess weight lossImprove read performanceInput/output to record carriersRedundant operation error correctionParallel computingData entry

Owner:HUAZHONG UNIV OF SCI & TECH

A fixed tooling for shell processing

ActiveCN114310379BSimple structureReduce manufacturing costFinal product manufacturePositioning apparatusEngineeringMachining

Owner:NINGBO HUASHUO MOLDING & MACHINE

Method and system for realizing system recovery of computer

ActiveCN102495774BAutomatically restore personalized configurationImprove experienceRedundant operation error correctionPersonalizationSystem recovery

Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

A three-point bending test device and test method for high-speed tensile testing machine

ActiveCN104406863BConstant speed loadingEasy to operateMaterial strength using steady bending forcesEngineeringThree point flexural test

Owner:AUTOMOBILE RES INST OF TSINGHUA UNIV IN SUZHOU XIANGCHENG +1

A ball bearing radial clearance measuring method and multi-parameter automatic measuring instrument

ActiveCN106197216BRealize automated detectionNon-destructive disassembly and repairMechanical diameter measurementsMechanical clearance measurementsBall bearingRobot hand

Owner:殷年久

Method for improving stereo crosstalk

InactiveCN101577851BEasy to separateReduced recovery quality requirementsStereophonic systemsStereophonic broadcast receivingComputer scienceCrosstalk

Owner:SOUTHEAST UNIV

A carbon-coated cobalt oxide and its simple and controllable preparation method

ActiveCN104843804BImprove crystal qualitySimple processCarbon preparation/purificationCobalt oxides/hydroxidesSolventOrganic fuel

Owner:菏泽维特食品有限公司

Reflow backwashing mechanism for automatic filtration of fluid

ActiveCN101658741BIncrease the rotation frequencyImprove frequency stabilityDispersed particle filtrationTransportation and packagingEngineeringMechanical engineering

Owner:浙江瑞孚电气有限公司

Preparation method of high-concentration and low-viscosity polyvinyl alcohol melt and film thereof

ActiveCN109370130BWell mixedImprove solubilityPolymer sciencePolyvinyl alcohol

Owner:CHINA PETROLEUM & CHEM CORP +2

Method for converting thermal energy at a low temperature into thermal energy at a relatively high temperature by means of mechanical energy, and vice versa

ActiveCN101883958BSelf-contained rotary compression machinesThermal energyThermal force

Owner:风和日暖科技有限责任公司