1.
semielectronic telephone switching system
半电子制电话交换机
2.
electronically controlled telephone exchange
电子控制电话交换机
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.
Relays for crossbar telephone switching systems
GB/T3972-1992纵横制电话交换机用继电器
7.
all relay automatic telephone system
全继电器制自动电话交换机
8.
electronic telephone switching system
电子式电话交换系统
9.
computer telephone exchange
电脑自动电话交换机
10.
step-by-step system local automatic telephone exchange
步进制市内用自动电话交换机
11.
concourse-connection longitudinal-transverse auto-telephone exchange
汇接用纵横制自动电话交换机
12.
crossbar private automatic branch exchange system
纵横制自动电话小交换机
13.
automatic local exchange
市内电话自动交换机
14.
automatic toll switching system
长途电话自动交换机
15.
ESSEX (Experimental Solid State Exchange)
实验固体电话交换机
16.
unit automatic exchange
内部自动电话交换机
17.
private automatic telephone exchange
专用自动电话交换机
18.
time multiplex telephone exchange
时分多路电话交换机