权威例句
The GSM System for Mobile CommunicationsAn expanded genome-scale model ofEscherichia coliK-12 (iJR904 GSM/GPR)Positioning GSM telephonesOverview of the GSM system and protocol architecturePositioning GSM telephonesOverview of the GSM system and protocol architectureGSM phase 2+ general packet radio service GPRS: ...General packet radio service in GSMOverview of the GSM system and protocol architectureOn the relaying capability of next-generation GSM cellular networks