The Broadband Integrated service Digital network is very suitable for implementing multiple service network.
宽带综合业务数字网b - ISDN是实现多种业务,多种功能综合服务的理想网络之一。
The Broadband Integrated service Digital network is very suitable for implementing multiple service network.
宽带综合业务数字网b - ISDN是实现多种业务,多种功能综合服务的理想网络之一。
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