前三个参数定义了光线的颜色。

The first three arguments define the color of the light.

youdao

本质上而言，量子点是用来改变光线的颜色。

In essence, quantum dots are used to change the colour of the light.

youdao

光线的颜色由蓝逐渐变紫。

The colors of the light shaded from blue into purple.

youdao

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