1. So how do we know which spectral patterns match up with which elements? 那么我们如何知道哪些光谱模式与哪些元素相匹配呢？
2. I want you to notice that this spectrum is interrupted by dark lines called spectral lines. 我想让你们注意到的是，这一光谱是被叫做光谱线的暗线所打断的。
3. There was a pretty extensive library of spectral line patterns of elements even by the 1860s. 甚至在19世纪60年代，就已经有了一个相当广泛的元素谱线模式库。
4. Using ultraviolet light, we can see the spectral signature of each component part of the pigment. 通过利用紫外光，我们可以看到颜料各个组成部分的光谱特征。
5. Spectroscopy is basically the study of spectra and spectral lines of light, and specifically for us, the light from stars. 光谱学基本上是一种研究光谱和光谱线的学科，特别对我们来说，是研究恒星发出的光。
