公共开关电话网络的英文

pstn public switched telephone network

• 公共:    public; common; co ...
• 开关:    Q-switching
• 电话:    telephone; phone; ...
• 网络:    network; electric ...

例句与用法

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1. Analogue pstn terminal support interface
   模拟公共开关电话网络终端支持接口
2. Essential requirements for terminal equipment intended for connection to digital interfaces of the pstn using channel associated signalling
   使用相关信号通道将终端设备联接于公共开关电话网络数字接口的基本要求
3. Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators - specification for general requirements
   连接由某些公共长途电话接线员操作的公共开关电话网络的专用分组交换机.一般要求规范
4. Essential requirements for a handset telephony facility provided by terminal equipment intended for direct connection to an analogue interface of the public switched telephone network
   使用公共开关电话网络模拟接口直接连接终端设备为手机通话提供条件的基本要求
5. Apparatus with one or more particular functions for connection to public switched telephone networks run by certain public telecommunications operators - specification for general requirements
   连接由某些公共长途电话接线员操作的公共开关电话网络用单功能或多种特别功能设备.第1部分:一般要求规范