ISDN的精選

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用“B-ISDN”造句大全，B-ISDN造句

用“B-ISDN”造句大全，B-ISDN造句

2022-06-11
"TheNIIwillbecomposedofthefollowingfourparts:aninformationhighway(anintelligentB-ISDNnetwork);informationappliances(telephones,computers,faxmachines,TVsets,etc.);""ThefoundationofNIIPlanisafullinte...