One of three main institution of the International Telecom munication Union ( ITU ). It mainly works at the examination and approval of remote radio communication and the recommendation of standards.

国际电信联盟（ITU）的三个主要机构之一。它主要从事于远距离无线电通信的审批与推荐标准。

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One of three main institution of the International Telecom munication Union ( ITU ). It mainly works at the examination and approval of remote radio communication and the recommendation of standards.

国际电信联盟（ITU）的三个主要机构之一。它主要从事于远距离无线电通信的审批与推荐标准。

youdao