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ActiveCN112654211AIncrease the areaImprove ventilationModifications by conduction heat transferModifications using gaseous coolantsElectric machineControl signal
InactiveCN107504621AReduce misuseImprove accuracyInput/output for user-computer interactionSpace heating and ventilation safety systemsEngineeringControl theory
ActiveCN114823999AImprove bindingSolve the defect that it is difficult to form a P-type ohmic contactSemiconductor devicesOhmic contactPhysical chemistry
InactiveCN107333825AImprove stabilityExtended service lifeMixing/kneading structural elementsMixing/kneading with vertically-mounted toolsGear wheelEngineering
ActiveCN114550336AAccurately determineGuarantee the effect of inspectionChecking time patrolsRegistering/indicating machine productionProcess engineeringFault avoidance