聚焦光线的英文

focused ray

• 聚焦:    focus; focusing; c ...
• 光线:    ray
• 聚焦光束:    focused beam

例句与用法

1. Think of the eye as a camera : it has two structures responsible for focusing light , the cornea and the lens
   试想像，我们的眼球犹如一部照相机，内有两个结构，用以聚焦光线，即角膜和晶体。