数据流限制控制每一个数据流的速率和持续时间。

Flow limits control the rate and duration for each data flow.

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持续时间，有更多的数据进行解码，在视频流比。

Time duration, there is much more data to decode in the video stream than in.

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持续时间，有更多的数据进行解码，在视频流比。

Time duration, there is much more data to decode in the video stream than in.

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