1.
Series and products of communication circuits for semiconductor integrated circuits--Products of telephone circuits
GB/T14027.5-1992半导体集成电路通信电路系列和品种电话电路系列品种
2.
disconnect a telephone
切断电话线路，挂断电话
3.
high -frequency channel
高频电路, 载波电话通路
4.
conference circuit
会议电话(调度通信)电路
5.
Interference from one telegraph circuit to another telegraph circuit or into telephone circuits.
一条电报线路或电话线路对另一条电报线路或电话线路的干扰。
6.
coil, loading, for insertion in telephone or telegraph line circuits
加感线圈,插入电话或电报外线电路的
7.
Improvement of Power-supply Circuit Of CT-X2 Fee Calculator for Telephone;
CT-X2型电话计费器电源电路的改进
8.
a bad telephone connection
运作不良的电话线路
9.
Sorry, it's not a very good line.
对不起，电话线路不好。
10.
tried to get a free line.
试着拨通一电话线路
11.
pin insulator for telephone line
电话线路针式绝缘子
12.
fit a listening device to(a telephone line)
在（电话线路）上装窃听器
13.
carrier telephone multiplexing equipment
载波电话多路复用设备
14.
A trunk line.
干线铁路或电话干线
15.
single-channel carrier frequency telephone terminal
单路载频电话终端机
16.
multichannel carrier-frequency telephone terminal
多路载频电话终端机
17.
time multiplex telephone exchange
时分多路电话交换机
18.
railway telephone exchange
铁路专用电话交换机