telephone circuit

Hotel service functions, equipped with international direct dial telephone, circuit television, business center, exchange, laundry room.

宾馆服务功能齐全, 内设国际直拔电话, 闭路电视, 商务中心 、 外汇兑换处 、 洗衣房.

We design the special interface circuit between the message accounting device and the telephone wire.

自己设计了电话计费器与电话线的独特接口电路.

The article analyses the connection mode of dispatching telephone circuit in common use, points out the existent problems caused by this mode, and through the theoretic analysis tries to reduce part circuit of this connection mode to build a new type connection mode of dispatching telephone circuit.

对目前的调度电话电路的连接方式进行了分析，指出改电路方式存在的问题，通过理论分析，试图减少其中的部分电路环节，构建出一种新型调度电路连接方式。

The Optimum Computing for Circuit Numbers of Trunk Circuit Network in a Local Telephone Network

市话网中继电路网电路数的优化计算

Also interference with telephone circuit is reduced because of the absence of zero-sequence currents .

由于无 零序电流,对电话线路干扰的影响也降低.