Now, you can also shine light through many equally spaced slits -- this called a diffraction grating.

现在，您还可以通过许多等 间距的狭缝照射光线——这称为衍射光栅。

But today, you learned about how to analyze the composition of a light source using diffraction grating and spectroscopy.

但是今天，您了解了如何使用衍射光栅和光谱分析光源的成分。

To do that, you need a spectrometer, a tool that uses diffraction grating or a prism to separate the wavelengths.

为此，您需要一个光谱仪，一种使用衍射光栅或棱镜来分离波长的工具。

Then the dark, rich part of the flower has a diffraction grating, such as you'd find on a CD, in the center, overlying the center of the flower.

然后花的深色、丰富的部分有一个衍射光栅，就像你在 CD 上看到的那样，在中心，覆盖在花的中心。