单词乎

light rays

light rays是什么意思、light rays怎么读

light rays汉语翻译

【医】 光线

light rays例句

  1. A range in relation to an optical system, such as a camera lens, representing distances great enough that light rays reflected from objects within the range may be regarded as parallel.
    (聚焦区)无限远与光学系统(如照像镜头)有关的一个范围,表示距离是如此之远,以至于从在这一距离的物体上反射回来的光可以视为平行光线
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