1.
At the telephone company end, ISDN lines connect to a digital switch.
在电话局一端，ISDN线连到数字交换机。
2.
Realization of Call Restricting of S1240 SPC Digital Exchanger
S1240程控数字交换机呼叫限制功能的实现
3.
Digital switches are now being implemented to accommodate these modulation types.
目前正在安装数字交换机以使前述两种调制方法得以实现。
4.
digital computer switching center
数字计算机交换中心
5.
digital cellular switch (DCS), and
数字蜂窝交换机 (DCS)，和
6.
digital electronic private automatic branch exchange
数字专用式电子自动交换分机
7.
SPC digital toll exchange
程控数字长途电话交换机
8.
Committee on Exchange of Digital Data
数字数据交换委员会
9.
packet switched digital data network
分组交换数字数据网
10.
container equipment data exchange
集装箱设备数字交换
11.
commutative law of vector
(管理数字) 向量交换律
12.
Technical requirements of digital SPC automatic telephone exchange
GB/T15542-1993数字程控自动电话交换机技术要求
13.
Multimedia Communications in Digital SPC Exchanges and Private Networks
数字程控交换机与专网中的多媒体通信
14.
Design of the Small Digital Program Controlled Exchange Used in Electric Power Communication;
电力通信用小型数字程控交换机的设计
15.
Research and Realization of Shipborne Digital Programme-controlled Telephone Switching Board Based on the CAN Bus
基于CAN总线船用数字程控交换机的实现研究
16.
SDV (swiched digital video)
交换式数字图像,[台]交换式数字视讯,[港]交换式数码视讯
17.
teleprinter switching network
电传打字机交换网络
18.
naval teletype exchange
海军电传打字交换机