semi-automatic private branch exchange
半自动专用小交换机
private automatic telephone exchange
专用自动电话交换机
digital electronic private automatic branch exchange
数字专用式电子自动交换分机
private branch exchange access line
专用小交换机联接通道
PABX [Private Automatic Branch Exchange]
私用自动分机交换机
Automated Data Interchange Systems Panel
自动数据交换系统专家小组（数据交换系统小组）
automatic telex exchange
自动用户电报交换机
VADE (Versatile Automatic Data Exchange)
多用途自动数据交换机
versatile automatic data exchanger
多用自动数据交换机
versatile automatic data exchange
多用途自动数据交换机;多用自动数据交换机
Each telephone served by a private branch exchange.
由专用小交换机提供服务的电话分机。
Adds a public or private automatic branch exchange, either digital or analog, to your network diagram.
在网络中添加数字（或模拟）的公用（或专用）自动交换分机。
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。
crossbar private automatic branch exchange system
纵横制自动电话小交换机
call or clear indicator for non-automatic switchboards and exchanges
呼叫或拆线指示器,非自动交换台和交换机用
machine driven switching system
机动制自动电话交换机
railway telephone exchange
铁路专用电话交换机
step-by-step system local automatic telephone exchange
步进制市内用自动电话交换机