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 performance of the contact lens was analysed in this paper.
本文对合成的角膜接触镜材料性能进行了分析。
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 design of a new kind reflective field lens is introduced in this paper.
本文介绍一种新型的反射式场镜的设计。
The design of a new kind reflective field lens is introduced in this paper.
本文介绍一种新型的反射式场镜的设计。
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