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
- Songs of the South
- Songs of Wang Mingjun
- Songs of Yao Minority from Distant Mountains
- Song State
- Song Sui
- Song Tao
- Songtao irrigation district
- Songtao Miaozu Zizhixian
- Songtao Reservoir
- Songtao Shuiku
- Song Tianhu
- Song tomb
- Song typeface
- Song Wan
- Song Weibo
- Song Wencong
- Song Wenzhi
- Song Wu
- Song Xi
- Song Xian
- Song Xiang
- Song Xiangfeng
- Song Xiangru
- Songxian Pavillion Qin Score
- Songxi green tea