1.
reverting call switch
同线电话用户间互叫机键
2.
an additional telephone operating on the same line.
在同一电话线上工作的额外的电话机。
3.
an additional telephone set that is connected to the same telephone line.
连在同一电话线上的额外的电话机。
4.
The police had tapped her telephone wire and listened in on her conversation with her confederates.
警方在她的电话线上搭线，监听她和同伙的谈话。
5.
Conventional Simulcast Radio System
同频发射共波式无线电话系统
6.
disconnect a telephone
切断电话线路，挂断电话
7.
the telephone wire that connects to the handset.
连接电话听筒的电话线。
8.
A wire or system of wires connecting telephone or telegraph systems.
电话线连接电话或电报系统的电线或电线系统
9.
Check whether someone else is trying to use the same phone line
检查是否有其他人正在使用同一电话线
10.
I am sorry, the line be busy.
对不起，电话占线。
11.
wireless telephone
ph.1. 无线电话
12.
a telephone line for long-distance calls.
远距离通话的电话线。
13.
VHF radio telephone transmitter
甚高频无线电话发话器
14.
In the meantime, that leaves the existing copper wire or cable TV coaxial cable as the only realistic alternatives.
同时，这也使现有的（电话）铜线或有线电视的同轴电缆成为唯一现实的（光缆）替代品。
15.
(of a telephone line)in use
（指电话线）使用着,占线
16.
Sorry ! The line is engaged.
对不起!电话线没空/占线。
17.
A trunk line.
干线铁路或电话干线
18.
Operator (of ka pay phone): Operator.
接线员（付费电话）：接线员。