narrow-band network 窄带网络
narrow-band dial-up network 窄带拨号网络
narrow frequency band network 窄频带网路
wireless narrow-band data network 无线专网
narrow band telecom access network 窄带电信接入网
Narrow-band Integrated Service Digital Network 窄带综合业务数字网
Therefore, such narrow band network cannot meet the needs of design work so the expansion and staging of network are imperative.
这种窄带宽网络已不能满足工作需要，网络扩充升级势在必行。
But the existing network content service supplier provides applications and content services based on narrow band mostly, such as receiving and dispatching mail and static page service.
而现有的网络内容服务商提供的大多数都是基于窄带的收发邮件、静态页面等应用和内容的服务。
The current access network is mainly a V5 integrated services access network providing only narrow band integrated services.
目前的接入网主要是V 5综合业务接入网，提供窄带综合业务。
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