但是，当它们经过粒子加速器发射的电子束扫描后，聚合分子链被去饱和。

But when they are zapped with a beam of electrons from a particle accelerator, the polymer chains are desaturated.

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光电倍增管有一个对光敏感的阴极，它发射的电子数目与撞击到其上面的光子数量成正比。

The tube consists of a light-sensitive cathode that emits electrons in proportion to the photons striking it.

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钴和磷酸盐在电极周围形成了薄膜型的催化剂，这些催化剂就利用电极发射的电子从水中分解氢和氧。

The cobalt and phosphate form a thin-film catalyst around the electrode that then use electrons from the electrode to split the oxygen from water.

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So what we're saying here is the incident energy, so the energy coming in, is just equal to the minimum energy that's required to eject an electron.

这里我们来讨论一下，入射能量正好等于,发射出一个电子所需要的最低能量的情况。

麻省理工公开课 - 化学原理课程节选

We're only using up a little bit to eject the electron, then we'll have a lot left over.

如果我们只需要用很少一部分来发射出电子，那么我们可以得到很多的剩余能量。

麻省理工公开课 - 化学原理课程节选

So we can use an equation to relate the incident energy and the kinetic energy to the ionization energy, or the energy that's required to eject an electron.

因此我们可以用一个公式将入射能量,与动能和电离能，就是发射出一个电子所需要的能量关联起来。

麻省理工公开课 - 化学原理课程节选