A gravitational lens is formed when light is bent by a massive object.
引力透镜现象就是光被巨大质量物体弯曲的现象。
The lens focuses the light onto the paper below.
这个镜头将光线聚集到下面的相纸上。
The paper derived a light equation for cone-lens.
本文推导了一个锥透镜的光线方程。
The lens is the part of the eye which light passes through.
晶状体是眼睛的一部分，光线须由此进入。
Lets get the light into the lens.
让我们把光引进镜头吧。
Lets get the light into the lens.
让我们把光引进镜头吧。
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