无线数字通信网  wireless digital communication network

综合数字通信网络  integrated digital network

数字移动通信网  digital mobile communication network; GSM

同步数字通信传输网  a digit synchronized communication net

综合数字移动通信网络  Integrated digital mobile Communication network

大对数数字通信电缆  large pair count digital communications cables

数字-数字数据变换器  digital-to-digital data converter

数字通信通路  DCC:DigitalCommunicationChannel

数字通信信号  digital communication signals; digital communication signal; digital modulated signal

综合业务数字网数字用户线  b bandwidth; ICANNISDN digital subscriber line; IDNISDN digital subscriber line

7类数字通信电缆  category 7 digital communications cables

八路数字通信系统  eight-channel digital communication systems

编码数字通信  coded digital communication

超六类屏蔽型数字通信电缆  6~+ shielded data cable

带正负号数字数字系统  signed digit number system

第3代数字通信  3rd Generatino 3G

第三代数字通信  3G

短波数字通信  HF digital communication

对称数字通信电缆  symmetrical category cables; symmetrical category cable; balanced category cable; category cables; symmetrical data communication cables