资源描述：
《pec电气工程专业英语证书考试-电气专有名词1》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、PEC电气工程专业英语证书考试-GlossaryofElectricalEngineeringTerms11-WireAsingle-wire(plusground)communicationsprotocol.·1-WireMasterA1-Wireinterfacemastercontroller.10GbE10-GigabitEthernet3GThird-generationmobiletelephoneprotocolsthatsupporthigherdatarates,fornon-voicecommunicationssuchasmu
2、ltimediaandInternetaccess.3GPPThirdGenerationPartnershipProject,acollaborationofcellphonetechnologystandardsbodies.802.11IEEEstandardthatspecifiesmedium-accessandphysical-layerspecificationsfor1Mbpsand2Mbpswirelessconnectivitybetweenfixed,portable,andmovingstationswithinalocala
3、rea.802.11aTheIEEEstandardthatgovernsthedeploymentof5GHzOFDMsystems.ItspecifiestheimplementationofthephysicallayerforwirelessUNIIb.802.11bAninternationalIEEEstandardforWLANnetworks,operatingat2.4GHzandprovidingamaximumdatatransferrateof11Mbps.802.11gAproposedstandardthatdescrib
4、esawirelessnetworkingmethodforaWLANthatoperatesinthe2.4GHzradioband(ISM:IndustrialScientificMedicalfrequencyband).Ittransfersdataatupto54Mbps.A-WeightingA-weightingisastandardweightingcurveappliedtoaudiomeasurements,designedtoreflecttheresponseofthehumanear.Sound-pressurelevels
5、derivedusingA-weightingaredenotedby"dBA,"orA-weighteddBlevels.A/DConverterAnalogtodigital.Specifically:A/Dconverter,acircuitthatconvertsanalogsignalsintoastreamofdigitaldata.ACAlternatingcurrent:Asignalorpowersourcethatvarieswithtime,switchingpolarities.Typically,sinusodialandc
6、onstantfrequency.AccelerometerAsensorortransducerformeasuringacceleration.ACPIAdvancedConfigurationandPowerInterface:Anindustry-standardspecification(co-developedbyHewlett-Packard,Intel,Microsoft,Phoenix,andToshiba)foroperating-system-directedpowermanagementforlaptop,desktop,an
7、dservercomputers.AreplacementforAPM.ACPRAdjacent(alternate)-channelpowerratioACRAccumulatedcurrentregisterADMAdd/DropMultiplexer:Asynchronoustransmissionnetwork(SDHorSonet)cancarrymultiplechannels.AnAdd/DropMultiplexerisadevicethatadds(inserts)ordrops(removes)lower-data-ratecha
8、nneltrafficfromthehigher-rateaggregatedchannel.ADPCMAd
