An evolution model of energy resource supply-demand network was constructed to describe the actual energy resource demand-supply in China.
通过构造一个简化的能源供需网络演化模型，从基本上刻画出中国目前的能源供需现状。
It requires a mass of transmission of audio and video which take high bandwidth, such as video on demand, network meetings.
这需要传输大量的声音和视频，占用大量的带宽，如视频点播、网络会议等。
It requires a mass of transmission of audio and video which take high bandwidth, such as video on demand, network meetings.
这需要传输大量的声音和视频，占用大量的带宽，如视频点播、网络会议等。
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