现代通信系统中,不仅仅需要传输语音信息,还需传输各种数据终端产生的大量数据信息以及视频信息。
A large number of data and video information which produced by data terminal and pronunciation information need to transmit in modern communication system.
现代通信系统中,不仅仅需要传输语音信息,还需传输各种数据终端产生的大量数据信息以及视频信息。
A large number of data and video information which produced by data terminal and pronunciation information need to transmit in modern communication system.
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