Even with the attenuation factor blending into our lighting equation, still, the maximum amount of light a surface receives is (N. L).

虽然我们已在光照方程式中加入了混合衰减因子，但是还需要表面的最大值光照数量。

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The attenuation amount of diffraction of this sound barrie is calculated according to the acoustics principle, the feasible remedies are put forward.

并根据声学原理计算了该声屏障绕射衰减量，提出了切实可行的补救措施。

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