略語大辞典 [C] 24 EGSM extended GSM(global system for mobile 拡張広域自動車電話システム. extended GSM(global system for mobile communications); a digital cellular telephone; ref. GSM(Group Speciale Mobile), an original European standard;ref. GMSK(Gaussian minimum shift keying) modulation; [C:E:Ind:Car]. 丸善「略語大辞典」JLogosID : 11873419