In history, change is constant.

在历史上，变化是不断的。

youdao

In history, change is constant.

在历史上变化是不断的。

youdao

Change is constant.

变化是永恒的。

youdao

How many moles of gas are there in each case, in reactants and products? If that changes, of course you know that the pressure in there is going to change at constant volume if the amount of gas in there is changing.

在反应物和生成物中，各有多少摩尔的气体？,如果它发生了变化,当然在等体条件下，如果气体的总量,发生了变化，压强也会发生变化。

麻省理工公开课 - 热力学与动力学课程节选

It only cares what temperature is. If temperature is constant, there's no change in energy.

如果温度是常数,能量就没有变化，对理想气体。

麻省理工公开课 - 热力学与动力学课程节选

So that should mean that the energy that's transferred to the electron should be greater, but that's not what you saw at all, and what you saw is that if you kept the frequency constant there was absolutely no change in the kinetic energy of the electrons, no matter how high up you had the intensity of the light go.

所以这意味着转移到电子,上的能量也越大，但这并不是，我们观测到的现象,我们所看到的是,如果固定光的频率不变,不管光强如何变化,电子的动能没有任何变化。

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