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。
The Broadband Integrated service Digital network is very suitable for implementing multiple service network.
应用推荐