以湖北有线数字电视前端为实例详述了有线数字电视前端的组建过程。
Expatiate the construction of cable digital TV head-end as Hubei province for an example.
湖北省已开通运行的数据及多媒体通信网有：分组交换网、数字数据网、CHINANET及中国公众多媒体通信网等。
The data and multimedia communication networks in service in Hubei province includes PSPDN, DDN, CHINANET and the public multimedia network.
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