然后我们输入这些数据，它们是关于湿地排水前后景观的信息。

Then we enter those data, information about what the landscape looks like before and after the wetlands were drained.

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最后，本文提出了一种适用于前后景分割编码的码率控制算法。

Finally, we proposed a rate control scheme which is appropriate for the foreground and background segmentation encoding.

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在曝光时你要照顾到闪电和前后景，周边的光线会限制你的曝光时间。

You will be exposing both the lightning and the foreground and background when you are taking these pictures. The ambient light will determine your exposure time.

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