地铁客运服务英语课件第十单元教材课件moban.ppt
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地铁客运服务英语课件第十单元教材课件moban.ppt
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PartBPartBPartEPartEPartDPartDPartAPartAPartCPartCUnit10MetroTelecommunicationSystem地铁通信系统地铁通信系统PartBPartBPartEPartEPartDPartDPartAPartAPartCPartCYouwillbeabletoRemembersomewordsaboutmetrotelecommunicationIntroducethecompositionandprofileofmetrotelecommunicationsystemAdvisedHours:
2classhoursPartBPartBPartEPartEPartDPartDPartAPartAPartCPartCPartBPartBPartEPartEPartDPartDPartAPartAPartCPartC1.Whatisthecommunicationsystemusedfor?
Transmitsignalstoremotecontrolsubway2.Haveyouseenthecommunicationsystemequipmentinthecourseofsubway?
3.Canyoutakeaphonecallinthesubway?
Yes.4.Theroleofcontrolcenterisdatareception,processingoperationsofthecentralnervoussystemtosend.5.Theroleofswitchistheon-offcontrolcircuit.6.Theroleoffiberisprovideanopticalsignaltransmissionmedium.PartBPartBPartEPartEPartDPartDPartAPartAPartCPartCPartBPartBPartEPartEPartDPartDPartAPartAPartCPartCPartBPartBPartEPartEPartDPartDPartAPartAPartCPartCPartBPartBPartEPartEPartDPartDPartAPartAPartCPartCPartBPartBPartEPartEPartDPartDPartAPartAPartCPartCPartBPartBPartEPartEPartDPartDPartAPartAPartCPartCPartBPartBPartEPartEPartDPartDPartAPartAPartCPartC1.Pleaselistthenameofeachpartofthetelecommunicationsystem.subsystemsoftransmisision,wirelessequipment,telephonesforpublicaffairs,closedcircuittelevision,special-usetelephone,broadcastsystemandclocks.2.Whatsthecharacteristicoftelecommunicationsystem?
Itisacomprehensivecommunicationnetworkforserviceuse,sendingallkindsofinformationlikevoice,words,dataandpictures.PartBPartBPartEPartEPartDPartDPartAPartAPartCPartCSituation:
Youaresupposedtointroducethemetrotelecommunicationsysteminyourowncityfromdifferentaspects:
1.metrocore2.serviceedge3.metroaggregation
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