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The formula tells us or absorbed based on the energy difference between the two levels that we're going between, that the electron is transitioning between.
这些公式告诉我们,或发出的光的，频率大小,是基于，电子转移的，两个能级，之间的能量差。
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you can do a thing called A Levels, which is two years in college.
你就可以得到A等级，你可以在大学读两年。
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So this means that we can go directly from the energy between two levels to the frequency of the photon that's emitted when you go between those levels.
这意味着我们可以直接,从两个能级的能量得到它们之间,跃迁发射出光子的频率。
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What I am doing, listen to me, I'm talking at two levels here.
我在做的是，听我说，我在谈论两个层次。
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I'm going to give you goals in two levels.
我会给你们两种水平的目标。
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This class will be taught on two levels.
本课程将分为两个部分。
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If you have two different ligands stimulating two different receptors, and one causes activation of this enzyme and generation of cyclic AMP, cyclic AMP levels will start to rise.
如果有两种不同的配体,刺激不同的受体,一种能够活化酶,并促进生成cAMP,cAMP的水平就会升高
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And what we predict as an energy difference between two levels, we know should correspond to the energy of light that's either emitted, if we're giving off a photon, or that's absorbed if we're going to take on a photon and jump from a lower to a higher energy level.
我们预测，两个能级之间的能量差，我们知道，它要么和发出的光有关,如果它发出光子的话，要么它吸收光子,从低能级跃迁到，更高能级上去。
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What happens is these two levels displace.
两个能级发生了分裂。
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Here I just show tissues at two levels of magnification and when we think about tissues we're going to be interested in a couple of different characteristics.
这里我就给你们展示一下,从两个不同水平看到的组织,当我们研究这些组织时,我们将会对它一大堆不同的特点产生兴趣
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Two levels.
就是这两个部分。
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