这个镜头将光线聚集到下面的相纸上。
如果眼球太长，那么眼睛的晶状体就无法将光线聚集在视网膜的正确位置，人类也无法接收到清晰的图像。
If the eyeball is too long, the eye's lens can't focus the light in the right part of the retina to process images clearly.
该项目所采用的太阳能技术被称为集光型太阳能发电技术（CSP），这种技术利用反光镜将太阳光线聚集到一个液体容器上。
The solar technology involved is known as concentrated solar power (CSP) which uses mirrors to concentrate the sun's rays on a fluid container.
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