So, we could also plot the number of electrons that are ejected as a relationship to the intensity, so that was yet another experiment they could do.

我们还可以画出出射,电子数和光强的关系，这是他们做的。

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Electrons are ejected from the object only when the frequency of the radiation is greater than a certain minimum value, called the threshold frequency.

仅当辐射频率大于某一最小值即极限频率时，物体才会发射出电子。

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So, we could also plot the number of electrons that are ejected as a relationship to the intensity, so that was yet another experiment they could do.

我们还可以画出出射,电子数和光强的关系，这是他们做的。

麻省理工公开课 - 化学原理课程节选

So, we would expect to see electrons ejected with the UV light source.

所以，我们能够预测,可以看到电子被紫外光源射出。

麻省理工公开课 - 化学原理课程节选

And there is a relationship here, and that is that the number of photons absorbed by the metal are related to the number of electrons ejected from the metal. So, in this figure here what I'm actually showing is these little sunshines, which let's say are each one individual photon.

这里有一个关系是，被金属吸收的光子,和被金属逐出的电子是相关的,所以，我展示的这个图,是这些小太阳，我们这里代指每一个独立的光子。

麻省理工公开课 - 化学原理课程节选