Based on the vector radiative transfer theory, the theoretical model of foil clouds with complex structure and great number has been built.

本文根据随机介质的矢量输运理论，建立了大数量复杂结构的箔片云团理论模型。

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For example, it costs more for storage and the distance computation is quite complex. With the number of images grows, it will be unsuitable for vector based image feature to stay in memory.

当图像数量增长到一定数量后，基于浮点矢量形式表示的图像特征就不适合放置在内存中，欧氏距离的计算也将造成较大的时间开销。

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