1.
Toll and local crossbar telephone switching system--Signal marks or colours of lamp and alarm ringer
GB/T2094-1980纵横制长、市话交换设备灯色及警铃信号标志
2.
automatic local exchange
市内电话自动交换机
3.
step-by-step system local automatic telephone exchange
步进制市内用自动电话交换机
4.
function of exchange
(市场学) 交换功能
5.
cross office switching time
交叉电话局转换时间
6.
automatic switching of telegraph and telephone
电报-电话自动交换
7.
automatic toll switching system
长途电话自动交换机
8.
ESSEX (Experimental Solid State Exchange)
实验固体电话交换机
9.
crossbar automatic telephone system
纵横制自动电话交换机
10.
computer telephone exchange
电脑自动电话交换机
11.
common battery exchange
共电制电话交换机局
12.
unit automatic exchange
内部自动电话交换机
13.
private automatic telephone exchange
专用自动电话交换机
14.
time multiplex telephone exchange
时分多路电话交换机
15.
machine driven switching system
机动制自动电话交换机
16.
railway telephone exchange
铁路专用电话交换机
17.
code switch automatic telephone system
码条式自动电话交换机
18.
electronically controlled telephone exchange
电子控制电话交换机