And what we have left over is this amount of energy here, which is going to be the kinetic energy of the ejected electron.

都用来发射它，剩下的这些就是，出射电子的动能。

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The second piece of information we need to know is what actually the kinetic energy is of the ejected electron, and that's something we can just measure by measuring its velocity.

其次，我们需要知道的信息是，出射电子的动能，这可以通过，测量它们的速度得到。

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Normally, the ejected electron will be replaced within the material and a characteristic X-ray will be emitted with an energy that is dependent on the atomic number of the material.

此时原子处于激发状态，外层电子充填内层电子的空位并伴随释放出特征X射线（其能量与物质的原子量有关）。

youdao

The second piece of information we need to know is what actually the kinetic energy is of the ejected electron, and that's something we can just measure by measuring its velocity.

其次，我们需要知道的信息是,出射电子的动能，这可以通过,测量它们的速度得到。

麻省理工公开课 - 化学原理课程节选

And what we have left over is this amount of energy here, which is going to be the kinetic energy of the ejected electron.

都用来发射它,剩下的这些就是,出射电子的动能。

麻省理工公开课 - 化学原理课程节选

That is to say an electron has been ejected.

也就是说电子被移除了。

麻省理工公开课 - 固态化学导论课程节选