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
- cyclic variable
- cyclic variable star
- cyclic vector
- cyclic voltammetry
- cyclid
- cyclide
- cyclidic coordinate
- cyclidric
- cyclin
- cyclin-dependent kinase，CDK
- cycling
- cycling BMX
- cycling equipment
- cycling of Summer Paralympics
- cycling of Summer Special Olympics
- cycling road of Summer Deaflympics
- cyclitol
- cyclization
- cyclization activation enthalpy
- cyclization activation entropy
- cyclization after transformation strategy
- cyclization of polymer
- cyclization reaction
- cycloaddition
- cycloaddition polymerization