1.
An indicator which shows that a message transfers through the digital switching system to indicate the start of message and activate the automatical message switching system into operations.
一种表明报文通过数字交换系统的指示器［符］，表示报文开始并激活自动报文交换系统进行工作。
2.
Research of Switching Control Based on Non-compressed Digital Video Monitoring System;
非压缩数字视频监控系统的交换控制研究
3.
A Design and Implementation of the Digital Voice Exchange System;
一个数字化语音交换系统的设计和实现
4.
Study on Application Integration and Data Exchange Platform in Digital Campus Based on SOA;
面向服务的数字校园应用系统整合与数字交换平台研究
5.
alog-to-digital-analog converter system
模拟数字模拟转换系统
6.
international seismic data exchange system
国际地震数据交换系统
7.
Data Interchange for Shipping Companies
航运公司数据交换系统
8.
Trade Electronic Data Interchange System
贸易电子数据交换系统
9.
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）
10.
Research and Development of Packet Data Switching Gateway in TETRA Digital Trunked System;
TETRA数字集群系统分组数据交换网关的研究与开发
11.
Selecting ethernet switches for digital substation automation systems
数字化变电站自动化系统中以太网交换机的选择
12.
The Conversion Skills of Capitalized Number Variables in RDS;
数据库系统中数字变量大写转换技巧
13.
The Design and Implement of Data Exchanging Platform for Transportation System
交管系统数据交换平台的设计与实现
14.
Committee on Exchange of Digital Data
数字数据交换委员会
15.
packet switched digital data network
分组交换数字数据网
16.
A High-precision Complete-digital and Tracking System for S/R-D Conversion
一种高精度全数字跟踪型轴角-数字转换系统
17.
Real-time bit rate transform system of digital TV transmission stream
数字电视传输流的实时码率变换系统
18.
ASCII：American Standard Code for Information change; a system used to translate keyboard characters into bits.
美国信息交换标准码：把键盘字符转换成字节的系统。