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  • 匿名
关注:1 2013-05-23 12:21

求翻译:1972年,国际电报电话咨询委员会(CCITT)首次提出综合业务数字网—ISDN的概念。是什么意思?

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1972年,国际电报电话咨询委员会(CCITT)首次提出综合业务数字网—ISDN的概念。
问题补充:

  • 匿名
2013-05-23 12:21:38
In 1972, the International Telegraph and telephone Consultative Committee (CCITT) first proposed-ISDN the concept of integrated services digital network.
  • 匿名
2013-05-23 12:23:18
In 1972, the Advisory Committee on International Telephone and Telegraph (CCITT) submitted for the first time an Integrated Services Digital Network - ISDN concept.
  • 匿名
2013-05-23 12:24:58
正在翻译,请等待...
  • 匿名
2013-05-23 12:26:38
In 1972, the International Telegraph and telephone Consultative Committee (CCITT) first proposed-ISDN the concept of integrated services digital network.
  • 匿名
2013-05-23 12:28:18
In 1972, the International Telegraph and telephone Consultative Committee (CCITT) first proposed-ISDN the concept of integrated services digital network.
 
 
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