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

通过分镜，你可以看到所谓的谱。

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

这是一个谱，它有一堆和弗劳恩霍夫在太阳谱中看到的一样的黑线。

And we can even look at an absorption spectrum of the leaf itself.

我们甚至可以观察到叶子本身的谱。

Evidence came from spectral lines both emission and absorption spectrum and then the photoelectric effect which we will get into in just a second.

证据来自谱和谱的谱线，以及电效应，我们马上就会进入。

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.

当我们观察这些恒星时，可以使用分计这种能分离波长的设备来揭示恒星的谱及其元素组成。

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.

但当我们研究非常遥远的天体时，我们会现它们的谱与我们根据典型恒星成分所预期的略有不同。

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.

但是当我们研究非常遥远的天体时，我们现它们的谱与我们预期的略有不同，因为我们对典型恒星组成的了解。