当一束平行的入射光线射到粗糙的表面时，因面上凹凸不平，所以入射线虽然互相平行，由于各点的法线方向不一致，造成反射光线向不同的方向无规则地反射，这种反射称之为“漫反射”或“漫射”。这个反射的光则称为漫射光。
报道了利用红移漫射光冷却原子的新机制。
A new deceleration and cooling mechanism by red shifted diffuse light have been reported.
在黎明和夜晚，教堂散发出来的漫射光，落在前庭和周围的环境中。
At dawn and at night, the diffused light comes out of the chapel and falls on the forecourt and the close surroundings.
广泛应用的商业环境，他们的漫射光使其成为彰显和固定装置失效需要内部电子元件。
Extensively used in commercial landscape applications, their diffused light makes them ineffective for spotlighting and fixtures require internal electronics.
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