telephone trunk meaning in English

电话中继线

Automatic telephone trunk network
长途自动电话网
Abstract : in order to demonstrate the implementation scheme of the automatic system for telephone trunk , the implementation is discussed from the software and the hardware , and it is proved that the detection efficiency and precision of the system are preferable
文摘:对局间中继线路自动侦测系统的实现方案进行论证，从软件和硬件方面进行探讨，证明该系统有较好的检测效率和检测精度。