原子能级是指原子系统能量量子化的形象化表示。按照量子力学理论，可计算出原子系统的能量是量子化的，能量取一系列分立值；能量值取决于一定的量子数，因此能级用一定的量子数标记。
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...正 当受激原子发出辐射,或正常原子吸收辐射时,散处其四周的原子对之颇有影响,因而此种现象可用于原子能级(atomic energy levels)的研究。其中较为简单的情形,是受 .
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本文分析了原子能级精细结构方面普遍存在的一些问题。
In this paper, we analyse some problems of the fine structure in atomic spectral analysis.
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通过数值计算，讨论了原子能级布居的统计几率与压缩的关系。
The relation between the statistical probability of atomic level population and the squeezing is studied by numerical calculations.
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可是网格造价昂贵，而所需的振荡电磁场严重的扭曲了原子能级。
However, lattices come with a price. Their oscillating electromagnetic fields typically and severely distort atomic energy levels.
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And we can look at precisely why that is by looking at the equations for the energy levels for a hydrogen atom versus the multi-electron atom. So, for a hydrogen atom, and actually for any one electron atom at all, this is our energy or our binding energy.
而且我们可以精确地看看,为什么是这样的,通过看对于氢原子和,多电子原子能级的方程所以对于氢原子，事实上对于任何一个电子，这是我们的能量或者我们的结合能。
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