These kinds of stars are called SPECTROSCOPIC BINARIES.

这类恒星被称为分光双星。

Even better: Alcor is a spectroscopic binary, too!

阳伴星也是分光双星！

I was using semiconductor particles for chemistry purposes, for spectroscopic purposes, studying chemical reactions on the surfaces of semiconductor particles.

我把半子用于化学目的，用于光谱学目的，研究半子表面的化学反应。

They found spectroscopic signs that the galaxy harbored two star-packed clumps with record-breaking low levels of elements heavier than helium.

他们发现的光谱学迹象表明，该星系中蕴藏着两个挤满恒星的云团，其中重于氦的元素的含量之低打破了记录。

Standard stuff - carbon date the cork, run a molecular test on the wax, spectroscopic refraction on the glass.

一些常规程序根据含量鉴别软木塞年份，给蜡做分子测试，分光镜折射来测试玻璃瓶身。

Well, within the next 15 years, we could start seeing real spectroscopic information from promising nearby planets that will reveal just how life-friendly they might be.

好吧，在未来的15年内，我们可以始真正的光谱学信息从附近有希望的行星始，去揭示一个星球有多适合居住。

In even a small telescope you can see that Mizar is actually a visual binary… but it turns out that both of those two stars making up Mizar are actually SPECTROSCOPIC binaries, too.

即使是用一个小望远镜，你也可以阳星实际上是目视双星… … 但事实证明，组成阳星的这两颗恒星其实也是分光双星。

With other spectroscopic techniques, we can determine if an object is spinning and how fast, whether it has a magnetic field and how strong it is, and even how massive and dense an object is.

用其他的光谱技术，我们还可以确定一个物是否在旋转，速度有多快，它是否有磁场，磁场有多强，甚至一个物的质量和密度有多大。

But from another spectroscopic analysis, based on the electrons, they showed that its gold was an impure alloy, in contrast to the near 24-carat version of the metal used for coins made in Rome.

但是，根据另一项基于电子的光谱分析，他们表明黄金是一种不纯的合金， 这与罗马制造的硬币所用的近 24 克拉的金属形成鲜明对比。

Instead of rambling this party had preserved a dignified homogeneity, and assumed to itself the function of representing the staid nobility of the countryside— East Egg condescending to West Egg, and carefully on guard against its spectroscopic gayety.

这伙人不处转悠，而是正襟危坐，自成一，并且俨然自封为庄重的农村贵族的代表——东卵人屈尊光临西卵，他们小心翼翼，提防灯红酒绿的欢乐会有损面。

With the help of the Anglo-Australian Telescope, or AAT, a 12.8 foot or 3.9 meter telescope, and the Gaia space observatory of the European Space Agency, they conducted spectroscopic imaging of the stellar streams in the southern hemisphere.

在 Anglo-Australian Telescope（AAT，一个12.8英尺/3.9米的望远镜）和欧洲航天局的盖亚空间天文台的帮助下，他们对南半球的恒星流进行了光谱成像。