1.
computer telephone exchange
电脑自动电话交换机
2.
common battery exchange
共电制电话交换机局
3.
electronically controlled telephone exchange
电子控制电话交换机
4.
electronic telephone switching system
电子式电话交换系统
5.
semielectronic telephone switching system
半电子制电话交换机
6.
ESSEX (Experimental Solid State Exchange)
实验固体电话交换机
7.
crossbar automatic telephone system
纵横制自动电话交换机
8.
unit automatic exchange
内部自动电话交换机
9.
private automatic telephone exchange
专用自动电话交换机
10.
time multiplex telephone exchange
时分多路电话交换机
11.
machine driven switching system
机动制自动电话交换机
12.
railway telephone exchange
铁路专用电话交换机
13.
code switch automatic telephone system
码条式自动电话交换机
14.
floor pattern magneto telephone switchboard
磁石落地式电话交换机
15.
portable magneto-telephone switch board
便携式磁石电话交换机
16.
A section of a telephone switchboard.
电话总机板电话交换机的一部分
17.
If not, the call went to the company's in-house telephone switching system, or PBX (private branch exchange).
如果没有，电话就转到公司内的电话交换系统（即PBX，用户电话交换机）。
18.
call or clear indicator for telephone switch-boards and exchanges
呼叫或拆线指示器,电话交换台和交换机用的