There are multiple scattering theories and single scattering theories in the process of light propagation.

在光线传播的简化过程中，产生了多重散射和单向散射两种理论。

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There are multiple scattering theories and single scattering theories in the process of light propagation.

在光线传播的简化过程中，产生了多重散射和单向散射两种理论。

youdao