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。
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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