图文电视是一种实用的数据广播系统，在信息领域中与其它系统相比，该系统具有明显的优势。

Videotex is a practical applied data broadcasting system, which has superiorities over other system in the field of information industry.

youdao

图文电视是一种实用的数据广播系统，在信息领域中与其它系统相比，该系统具有明显的优势。

Videotex is a practical applied data broadcasting system, which has superiorities over other system in the field of information industry.

youdao