介绍了目前电子级过氧化氢的质量标准；

The present quality specifications of semiconductor hydrogen peroxide are introduced.

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采用电子级变速传送，稳定可靠、寿命长、低噪音。

Electronic variable speed transmission, stable and reliable, long life, low noise.

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就像我们预期的设计为基础，这不是电子级多晶硅，但它并不遥远。

So as we expected based on the design, this is not electronic-grade poly, but it's not that far off.

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And this is the energy level diagram for multi-electron atoms.

看一下能量级图表中,多电子原子的部分。

麻省理工公开课 - 固态化学导论课程节选

Now what I want to do is take you exactly to this place where we are right now, where we see energy levels and electron filling, but I want to start all over again and I want to use a totally different approach.

现在我想做的是带你们,到达我们现在所处的地方，我们能看到能量级和电子分布的地方，但我想重新开始,而且用一个完全不同的方法。

麻省理工公开课 - 固态化学导论课程节选

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。

麻省理工公开课 - 化学原理课程节选