“透镜”造句
透镜会把图片放大，就像在看巨大的电视屏幕一样。
A lens would magnify the picture so it would be like looking at a large TV screen.
这大概是因为胶合
透镜会因温度变化而变形.
Probably because the cemented lenses are distorted by temperature variations.
我们用一块负
透镜,它将使光线发散一些.
We introduce a negative lens which will diverge the rays a bit.