| 1. | These atoms have the simplest energy level schemes .
这些原子的能级图最为简单。
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| 2. | The spacing of translational energy levels is very small .
平动的能级间隔极少。
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| 3. | For a harmonic oscillator the energy levels are evenly spaced .
对谐振子来说，能级是等间隔的。
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| 4. | Investigation of atomic spectra yields atomic energy levels .
原子光谱的研究能给出原子能级信息。
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| 5. | Thus each orbit may be called, alternatively, an energy level .
因此，每一个轨道也可以交替地称作一个能级。
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| 6. | The intensity is determined by a felicitous arrangement of the atomic energy levels .
这一强度取决于原子能级的适当排列。
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| 7. | As the atoms approach, the splitting between the energy levels will be increased .
随着原子的接近，能级之间的分裂将增加。
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| 8. | This is why it is acceptable to speak of well-defined energy levels .
这就是为什么我们还能接受所谓充分确定的能级这样的说法。
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| 9. | Relativistic motion of the electron produces fine structure among the energy levels .
电子的相对论性运动在能级中产生精细结构。
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| 10. | Thus the second-lowest energy level of the particle in a cube is threefold degenerate .
于是立方体中的第二最低能级是三重简并的。
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