1.
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
2.
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
3.
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
4.
SPC digital toll exchange
程控数字长途电话交换机
5.
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
6.
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
7.
Regulation for construction of railway SPC digital telephone switching engineering
铁路数字程控交换通信工程施工规范
8.
Technical code for SPC digital telephone switching engineering design of railway
铁路时分数字程控交换设备技术规范
9.
SPC exchanges have accounted for 99.8% of the country central office telephone exchanges and 99.6% of long distance transmission has been digitized.
全国局用交换机程控化比重达到99.8%，长途传输数字化比重达到99.6%；
10.
Generic specification for stored program control digital private automatic branch telephone exchange system
GB/T14381-1993程控数字用户自动电话交换机通用技术条件
11.
Code for design of railway SPC digital switching engineering
铁路时分数字程控电话交换工程设计规范
12.
Standard for quality inspection and assessment of railway digital telephone switching engineering
铁路数字程控交换通信工程质量评定验收标准
13.
Exploration of Basic Architectures of the Course in "Program Control Digital Switch Technology";
探索“程控数字交换技术”课程的基本结构
14.
microcomputer controlled digitizing robot
微机控制数字变换机扑
15.
digital computer switching center
数字计算机交换中心
16.
digital cellular switch (DCS), and
数字蜂窝交换机 (DCS)，和
17.
SPC telex exchange
程控用户电报交换机
18.
The ZXJ10 data maintenance program- controlled switchboards and the failure to deal with common
ZXJ10程控交换机的数据维护及常见故障处理