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。

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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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Shawn Bercuson is founder of Prescreen, a curated social discovery video on demand network.

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Each Helper is required to go through a personal interview and background check in order to become part of the on-demand network WunWun has created.

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The FastBreak network, which Sprint calls an integrated on-demand network or ION, will let users access the Internet at speeds up to 100 times faster than traditional modems.

CNN: Sprint unveils high-bandwidth Net access