全球铁路移动通信系统  gsm-r

铁路移动通信系统(GSM-R)  Global System for Mobile Communications for Railways(GSM-R

铁路全球移动通信系统  gsm-r

铁路数字移动通信系统  GSM for railway(GSM-R; railway digital mobile communication system

铁路专用移动通信系统  gsm-r

铁路综合数字移动通信系统  gsm-r

铁路综合移动通信系统  gsm-r

铁路通信系统  Railway communication system; Railroad Communication System RRCS

铁路移动通信  Railway mobile communications

3G移动通信系统  3G communication system

B3G移动通信系统  Beyond 3 Generation mobile communication system; B3G mobile communications system; beyond 3G mobile communications system

CDMA移动通信系统  CDMA mobile communication system

GSM(全球移动通信系统)  asymmetric thermal environment; GSM

IMT-Advanced移动通信系统  IMT-Advanced mobile communication systems

TD-SCDMA移动通信系统  TD-SCDMA system for mobile; TD-SCDMA mobile communication system

WCDMA移动通信系统  WCDMA mobile communication system

低轨卫星移动通信系统  LEO satellite mobile communication system

第3代移动通信系统  3 G; third generation mobile communication systems; third generation wireless mobile communication systems; third generation mobile communication system; third generation mobile communication; The 3rd generation mobile communication system

第3代移动通信系统(3G)  3G mobile communication system