这是用来阻挡太阳直射光线的。

This was intended to exclude the direct rays of the sun.

《柯林斯英汉双解大词典》

分析表明，溶解的有机物质吸收了足够的来自太阳光线的蓝色波长，使冰看起来是绿色的。

Analysis shows that the dissolved organic material absorbs enough blue wavelengths from solar light to make the ice appear green.

youdao

随着我们年龄的增长，眼睛的晶状体变厚，因此对光线的折射也会发生变化。

As we age, the lenses of the eyes thicken, and thus refract light differently.

《柯林斯英汉双解大词典》

And J.J. Balmer in 1885 playing with the numbers asociated with the lines there, you notice how the lines are colored?

885年，巴尔末,开始把光线与数字联系起来，你注意过光线是怎样被赋予颜色的吗？

麻省理工公开课 - 固态化学导论课程节选

And what's interesting about this sun is it has a ray of light coming out of the top.

这幅画的有趣之处在于红日的光线从画面的顶端射了出来。

It's like 课堂 - SpeakingMax英语口语达人

And these rings are indicative of the crystal structure of nickel and can be explained only by invoking wavelike properties of light.

这些光圈,表明了了镍的晶体结构,而且只能通过,光线中波的特征来解释。

麻省理工公开课 - 固态化学导论课程节选