第1題Theairoutletoftheventilationsystemismainlycomposedoffreshairoutlet,airsupplyoutlet,airreturnoutletandexhaustoutlet.()第2題Thegas-liquidseparatorisusedtoseparatetheliquidinthesteamattheinletoftheevaporator,soastoensurethatthecompressorisdrycompression.()第3題Whentheevaporatorcoolingcoilislongandtheresistancelossislarge,especiallyatlowtemperature,theinternalbalancethermalexpansionvalveshouldbeused.()第4題Thereturnairoutletisusedtodistributeairtothepassengercompartment.()第1題Theairoutletoftheventilationsystemismainlycomposedoffreshairoutlet,airsupplyoutlet,airreturnoutletandexhaustoutlet.()第2題Intherefrigerationsystemoftheairconditioner,anelectromagneticfour-waydirectionalvalveisaddedtoswitchtheflowdirectionofhighandlowpressurerefrigerantinthepipeline,sothattheairconditionercanbothrefrigerationandheating.()第3題ThecabcontrolstheairconditioningoperationofthewholetrainthroughTCMs,whichiscalledtraincontrolmode.()??????????????????????????????????第1題Thebroadcastingsystemistorealizevariousinformationbroadcastingunderthenormaloperationstateofthetrain,andstartemergencybroadcastingoremergencyintercomandalarmincaseofdisasterorotheremergencies.()第2題Inthesemi-automaticbroadcastmode,PAreceivesthemanualoperationinformationofTCMsandplaysthespecifiedoutboundorinboundbroadcast.()第3題Interiorlightingincludes(farandnear)headlights,taillightsandrunninglights.()?????第1題Theinputratedworkingvoltageoftrainoperationlampis220V.()第2題TherooflightinginthecabusesLEDlightingandispoweredbydc110vDCbus.()第3題Thewindshieldwiperismainlyusedtoscrapeandcleanthefrontwindowglassintheprocessofrainorsnow.Inaddition,itisusedtospraywater,washandscrapethefrontwindowglasspollutioncausedbythetraininuse.()????????????????????????第1題ThehostofsmoketemperaturedetectoruploadsthealarminformationtoMVBthroughTCMsinterface.()第2題Smoketemperaturedetectionsystem“Selfinspection”After,FCUItisforcedtoconductaninternalfunctioncheckanddisplaytheself-testprocessalarmdisplaythroughthedisplay.()第3題Thechangeofrefrigerantintheevaporatorcanbedividedintothefollowingtwoprocesses.①Thewetsteamisvaporizedintodrysaturatedsteam②thedrysaturatedsteamisfurthersuperheatedintosuperheatedsteam.()????????第1題Servicebrakingistopreventtheimpulseofthevehiclebeforeparkingandmakethevehiclestopsmoothly,whichiscontrolledbytheexecutionprogramsetinECU.()第2題Resistancebrakingconvertsthekineticenergyofthetrainintoelectricenergy,andthentheelectricenergyisfedbacktothepowergrid,whichcanbeprovidedtoadjacenttrains.()第3題Theworkingprocessofscrewcompressorisdividedintothreestages:inlet,compressionandexhaust.()?????????????第1題Airdryersaregenerallytowertype,includingsingletowertypeanddoubletowertype.()第2題Pc7yhasaspringbrake(alsoknownasparkingbrake),whichismainlyusedforvehicleparkingbrake.()第3題Accordingtoitsbasiccomposition,syntheticbrakeshoecanbedividedintosyntheticresinbrakeshoeandasbestosrubberbrakeshoe().?????????第1題Thebrakedisccanbedividedintoaxlediscandbodydiscaccordingtodifferentinstallationmethods.()第2題Pc7yunitbrakeandpc7yfunitbrakearearrangeddiagonally.