例如，经过训练的观察者主要通过对光谱中出现的简单线条的精确分析来获取关于恒星的大量信息。

For example, trained observers obtain a very large amount of information about a star mainly from the accurate analysis of the simple lines that appear in a spectrum.

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当阵列周期增加，反射光谱中出现有规律地红移。

When the array periodicity increases, the reflectance spectrum exhibits a large redshift regularly.

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我们要做的最要紧的事，如果我们在思考这种问题的话，其实只不过是,准确地确定哪些轨道会导致,这五条分立谱线在光谱中出现。

So the first thing that we want to do, if we're thinking about something like this, is just to determine exactly what orbitals are causing the five different lines that we're seeing in the spectrum.

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- So the first thing that we want to do, if we're thinking about something like this, is just to determine exactly what orbitals are causing the five different lines that we're seeing in the spectrum.

我们要做的最要紧的事，如果我们在思考这种问题的话，其实只不过是,准确地确定哪些轨道会导致,这五条分立谱线在光谱中出现。

麻省理工公开课 - 化学原理课程节选

So, how many distinct, so again, we're talking about distinct kinetic energies, a spectrum for the element hafnium, 72 and I'll tell you here that it has a z of 72, so you don't have to spend two minutes searching your periodic table.

好，有多少分立的……还是一样，我们讨论的还是不同的动能，铪元素的光谱中出现，而且我来告诉大家铪的原子序数是，这样你就不用因为在元素周期表中找它,而花费两分钟的时间了。

麻省理工公开课 - 化学原理课程节选