常見例句ETSI?European?Telecommunications?Standards?Institute? 歐洲電信標(biāo)準(zhǔn)化組織?Before joining ETSI he was Head of the Standardization Division of the Ministry of Posts and Telecommunications (BMPT) at Bonn. 在加入ETSI之前,布魯克先生是波恩郵電和電信部標(biāo)準(zhǔn)局局長。First it was standardised by ETSI but now that effort has been handed onto the 3GPP. 首先它是ETSI的標(biāo)準(zhǔn)化,但是現(xiàn)在那一個努力已經(jīng)在3GPP之上被傳遞。ETSI has specified several alternative methods as the correction of this problem. 歐洲電信標(biāo)準(zhǔn)委員會規(guī)定了幾種可供選擇的方法,用以對此類問題進(jìn)行修正。It was specified by ETSI and originally intended to be used only in the European countries. 起初,NMT工作于450MHz,可以在瑞典和挪威的大面積森林地區(qū)獲得好的穿透損耗,后來它也工作于900MHz(現(xiàn)在該頻段用于GSM系統(tǒng))。ETSI,GSM 03.20, “Digital Cellular Telecommunications System(Phase 2+);Security Related Network Functions”. 駱襄陽;“GSM交換系統(tǒng)概要”;中華電信訓(xùn)練所;1996. 返回 ETSI