1.
railway telephone exchange
铁路专用电话交换机
2.
Study on the Organizing Pattern of the Cross-region Coal Communication Network;
跨地区煤炭专用电话交换网组网模式的研究
3.
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。
4.
private automatic telephone exchange
专用自动电话交换机
5.
Each telephone served by a private branch exchange.
由专用小交换机提供服务的电话分机。
6.
The number of telephone lines connecting the subscriber's terminal equipment to the public switched network and which have a dedicated port in the telephone exchange equipment.
连接用户终端设备和公用交换网并具有一个电话交换设备专用端口的电话线数。
7.
If not, the call went to the company's in-house telephone switching system, or PBX (private branch exchange).
如果没有，电话就转到公司内的电话交换系统（即PBX，用户电话交换机）。
8.
cord for telephone switchboards, insulated, for a voltage of between 81v and 1000v
电话交换台用绝缘软线,81至1000V电压用
9.
Relays for crossbar telephone switching systems
GB/T3972-1992纵横制电话交换机用继电器
10.
call or clear indicator for telephone switch-boards and exchanges
呼叫或拆线指示器,电话交换台和交换机用的
11.
Such a switch replaces dedicated circuit-switching hardware with IP switching technology
这样的交换机是利用IP交换技术代替专用的电路交换硬件。
12.
Intranet Telephony: Will your LAN Replace Your PBX?
内部网电话：局域网会替代用户电话交换机吗？
13.
Intranet Telephony: Will your LAN Replace Your PBX? (2)
内部网电话：局域网会替代用户电话交换机吗？（2）
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.
Subscriber line signalling system for telephone automatic switching network
GB3378-1982电话自动交换网用户信号方式
17.
What functions does the mobile phone exchange have7
移动电话交换机起什么作用?
18.
Application Analysis of the Signaling System in Telepone Exchange Network;
信令系统在电话交换网中的应用分析