automatic railway telephone system的意思|示意
美 / /
英 / /
铁路自动电话系统
automatic railway telephone system的网络常见释义
铁路自动电话系统 automatic railway telephone system 铁路自动电话系统 automatic coin telephone system 自动投币电话系统 crossbar automatic telephone system 纵横制自动电话交换机 ..
automatic railway telephone system相关例句
This paper introduces the automatic protection means of the channel in railway dispatching telephone system.
介绍了铁路调度电话系统通道自动保护的措施。