ITU-T Recommendation I.231.1 was published in Fascicle III.7 of the Blue Book. This file is an extract from the Blue Book. While the presentation and layout of the text might be slightly different from the Blue Book version,the contents of the file are identical to the Blue Book version and copyright conditions remain unchanged (see below).2 In this Recommendation,the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.
ITU-T I.231.1-1988由国际电信联盟 IX-ITU 发布于 1988。
ITU-T I.231.1-1988 在中国标准分类中归属于: M57 电子系统工程。
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