Also remember that bouncing light-even into a shiny reflector that keeps light directional - adds to the distance it travels.
同样还要注意的是，经过反射的光线其行进的距离也会增加，即使使用光面反光板也一样。
Also remember that bouncing light-even into a shiny reflector that keeps light directional - adds to the distance it travels.
同样还要注意的是，经过反射的光线其行进的距离也会增加，即使使用光面反光板也一样。
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