管理学 电子政务网络技术 释 integrated services digital network; ISDN 综合业务数字网 实现话音、数据和图像在同一个网络中传输与交换的重要技术，是一种典型的电路交换网络系统。
网络与数据通信 协议体系与组成结构 释文 integrated service digital network, ISDN 综合业务数字网
- water conservancy information classification
- water conservancy information guarantee system
- water conservancy information management
- water conservancy information network
- water conservancy information resource planning
- water conservancy information resource system
- water conservancy informatization
- water conservancy informatization organization system
- water conservancy informatization planning
- water conservancy in pastoral area
- water conservancy institutions in Australia
- water conservancy institutions in Canada
- water conservancy institutions in Egypt
- water conservancy institutions in France
- water conservancy institutions in India
- water conservancy institutions in Israel
- water conservancy institutions in Japan
- water conservancy institutions in Kazakhstan
- water conservancy institutions in Mexico
- water conservancy institutions in Netherlands
- water conservancy institutions in Pakistan
- water conservancy institutions in Thailand
- water conservancy institutions in the United States
- water conservancy machinery
- water conservancy machinery in ancient China