1.
step-by-step system local automatic telephone exchange
步进制市内用自动电话交换机
2.
automatic local exchange
市内电话自动交换机
3.
machine driven switching system
机动制自动电话交换机
4.
unit automatic exchange
内部自动电话交换机
5.
crossbar automatic telephone system
纵横制自动电话交换机
6.
private automatic telephone exchange
专用自动电话交换机
7.
concourse-connection longitudinal-transverse auto-telephone exchange
汇接用纵横制自动电话交换机
8.
computer telephone exchange
电脑自动电话交换机
9.
A private telephone exchange that automatically connects internal "branch" lines to the external circuits of a telephone system.
一种自动地将内部用户线连接到电话系统外线的专用电话交换机。
10.
all relay automatic telephone system
全继电器制自动电话交换机
11.
automatic toll switching system
长途电话自动交换机
12.
code switch automatic telephone system
码条式自动电话交换机
13.
crossbar private automatic branch exchange system
纵横制自动电话小交换机
14.
local automatic circuit exchange
市内自动线路交换机
15.
A Self Synchronous System of Step Motors with EMF Commutating
采用电势换相技术的步进电动机自同步闭环控制
16.
"Present-day telephone-circuit switching equipment is based on either electromechanical techniques (employing crossbar, Strowger, or rotary switches)"
目前，电话的电路交换设备或以机电技术(采用纵横制、步进制或旋转式接线器)，
17.
automatic telex exchange
自动用户电报交换机
18.
identifier circuit
(自动电话交换机的) 识别电路