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单词
ISDN
释义
ISDN
NOUN
U
/ˌaɪ es diː ˈen/
Integrated Services Digital Network: a system using telephone connections for sending information between computers. ISDN is a slower system than ADSL. 综合业务数字网（一种通过电话线连接在计算机之间传递信息的系统，速度较异步数字用户专线慢）