telephone switching造句

• A . b . strowger invents the telephone switch , dial telephone
  史端乔发明自动电话交换系统。
• Requirements for pabxs access to public telephone switching network
  自动用户交换机进网要求
• Methods of test for toll manual telephone switching equipment
  长途人工电话交换设备.测试方法
• Telephone switching and ancillary system
  电话转换及辅助系统
• Coastal mobile telephone switching system
  船舶电话交换机
• Mtsc mobile telephone switching center
  移动电话交换中心
• Nab mobile telephone switching center
  移动电话交换中心
• Automatic telephone switching system
  自动电话交换系统
• Code for design of railway spc digital telephone switching engineering
  铁路时分数字程控电话交换工程设计规范
• As for the ibm 801 , it never did become a telephone switcher
  就ibm 801而言，它从来都没有成为一个电话转换器。
• Local telephone switching system
  市内电话交换机
• Cordless telephone switch board
  无塞绳电话交
• The legacy telephone switches all use the 2 mbs ports as their trunk modules
  传统的话音交换机使用的中继模块都是2mbits端口。
• General technical requirements and test methods for manual toll telephone switching equipment
  人工长途电话交换设备通用技术要求和测试方法
• Technical requirements and test methods for relays in manual toll telephone switching equipments
  人工长途电话交换设备中继器技术要求和测试方法
• Building 2 million ports digital program - controlled telephone switching systems for beijing telecom bureau
  共200万数字程控交换机的安装开通项目管理。
• Technical requirements and test methods for monitor ' s desks in manual toll telephone switching equipments
  人工长途电话交换设备班长台技术要求和测试方法
• The test methods for the technical specifications of ringing and tone for automatic telephone switching network
  电话自动交换网铃流和信号音技术指标测试方法
• The test methods for the technical specifications of subscriber line signalling for automatic telephone switching network
  电话自动交换网用户信号技术指标测试方法
• Digital program - controlled telephone switching system project ( 6 , 000 lines and trunks ) pingyao telecom bureau , shanxi province
  陕西电信西安小寨局20000门程控交换机开通工程。