The experiment of measuring metal electron work function usually neglects the loss caused by the electron emission of tungsten filament, so the system error will be-1.86%.

在金属电子逸出功测定实验中，未考虑由钨丝电子发射引起的损耗，存在约-1.86%的系统误差。

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The main work can be outlined as follow:(1) The complex function method is used as a basis for the theoretical model of the space crack prevention in metal dies using electromagnetic heating.

采用复变函数方法，建立了金属模具电磁热效应空间裂纹止裂的理论分析模型。

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A work function metal layer may be formed on the interface layer.

功函数金属层可形成在界面层上。

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So, we do this here for the photoelectric effect, and in terms of the photoelectric effect, what we know the important point is that the incoming photon has to be equal or greater in energy then the work function of the metal.

所以，我们做这个是为了说明，光电效应，在光电效应方面，我们知道的最重要的事情,就是入射的光子能量必须等于,或者大于金属的功函数。

麻省理工公开课 - 化学原理课程节选

now we're not just talking about 1 photon, 1/2 let's say we shoot them all at the same time at our metal, each of them having some energy that's let's say 1/2 the work function. So, just to take a little bit of an informal survey, who thinks here that we will have an electron that is ejected in this case?

我们现在不仅仅讨论一个光子，它们所具有的能量是功函数的，我们在同一时刻把它们打到金属上,我们做一个不太正式的调查,谁认为这种情况下,一个电子会被打出？

麻省理工公开课 - 化学原理课程节选