Lambert law

例句：

1. 1. The Lambert law states that the intensity of light is directly proportional to the square of the distance from the source.
   兰伯特定律表明，光的强度与光源到观察者的距离的平方成正比。
2. 2. This Lambert law explains why some materials scatter light more than others.
   这个兰伯特定律解释了为什么有些材料比其他材料散射光的能力更强。
3. 3. In this case, the Lambert law applies because the sun's rays are parallel and uniformly distributed.
   在这种情况下，兰伯特定律适用，因为太阳光线是平行且均匀分布的。