1.
electronically controlled telephone exchange
电子控制电话交换机
2.
semielectronic telephone switching system
半电子制电话交换机
3.
common battery exchange
共电制电话交换机局
4.
machine driven switching system
机动制自动电话交换机
5.
crossbar automatic telephone system
纵横制自动电话交换机
6.
experimental electronic controlled automatic switch board
实验电子控制自动交换机
7.
computer-controlled telegraph switching
计算机控制电报交换
8.
Relays for crossbar telephone switching systems
GB/T3972-1992纵横制电话交换机用继电器
9.
all relay automatic telephone system
全继电器制自动电话交换机
10.
electronic telephone switching system
电子式电话交换系统
11.
computer telephone exchange
电脑自动电话交换机
12.
Supervise telecom exchanger& desk phone installation.
监督程控交换机和桌上电话的安装.
13.
SPC digital toll exchange
程控数字长途电话交换机
14.
step-by-step system local automatic telephone exchange
步进制市内用自动电话交换机
15.
concourse-connection longitudinal-transverse auto-telephone exchange
汇接用纵横制自动电话交换机
16.
crossbar private automatic branch exchange system
纵横制自动电话小交换机
17.
automatic local exchange
市内电话自动交换机
18.
automatic toll switching system
长途电话自动交换机