Through a spectroscope, you see what's called an absorption spectrum.

通过分镜，你可以看所谓的吸收。

It was an absorption spectrum, and it had a bunch of the same dark lines Fraunhofer had seen in our sun's spectrum.

这是一个吸收，有一堆和弗劳恩霍夫在太阳中看的一样的黑线。

While we’re observing these stars, we can use a spectrometer, the device that separates wavelengths, to reveal the star’s absorption spectrum and its elemental composition.

在观察这些恒星，可以使用分计（一种分离波长的设备）来揭示恒星的吸收及其元素组成。

But when we study very distant bodies, we find that their absorption spectrum is slightly different from what we’d expect, given our knowledge of typical star compositions.

但是当研究非常遥远的天体，发现的吸收与预期的略有不同，这是基于对典型恒星组成的了解。

But when we study very distant bodies, we find that their absorption spectrum is slightly different from what we'd expect, given our knowledge of typical star compositions.

但是当研究非常遥远的天体，发现的吸收与预期的略有不同，因为对典型恒星组成的了解。