Finally, I used a rectangular light for adding a small touch on the bar.
最后，我使用矩形光源为吧台增加一些小点缀。
A good roadway illumination requires the LED street light to have a rectangular light distribution pattern just cover the roadway and without any light pollution out of the road.
良好的道路照明要求LED路灯的配光为长方形的光型，路灯发出的所有光刚刚可以覆盖住马路，而马路之外的光污染几乎为零。
By regarding a linear light source as a directional rectangular light source with infinitesimal width, a simple formula is derived for calculating the diffuse reflection component.
通过将线光源看作一个具有无限细小宽度的有向长方形光源，我们得到了一个计算漫反射分量的简洁公式。
By regarding a linear light source as a directional rectangular light source with infinitesimal width, a simple formula is derived for calculating the diffuse reflection component.
通过将线光源看作一个具有无限细小宽度的有向长方形光源，我们得到了一个计算漫反射分量的简洁公式。
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