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國際電報電話咨詢委員會〔国际电报电话-询-员会〕 gwok3 zai3 din6 bou3 din6 waa2 zi1 seon1 wai2 jyun4 wui2 {Guó jì Diàn bào Diàn huà Zī xún Wěi yuán huì}

International Telegraph and Telephone Consultative Committee (CCITT)

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