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
- hypersonic flow
- hypersonic inlet
- hypersonics
- hypersonic sound
- hypersonic turbulent boundary layers
- hypersonic vechile flight test instrumentation
- hypersonic vehicle
- hypersonic vehicle control
- hypersonic vehicle test
- hypersonic wake
- hypersonic wind tunnel
- hypersorber
- hypersound
- hyperspace
- hyperspace curve
- hyperspectral atmospheric infrared sounder
- hyperspectral image
- hyperspectral image processing
- hyperspectral imager
- hyperspectral object fine recognition
- hyperspectral remote sensing
- hyperspectrum imaging
- hypersphere
- hypersphere geometry
- hypersphere packing