我们用库伦定律解释它，力作为距离r的函数，让我们考虑一下。

We can use the Coulomb force law to explain this where we can describe the force as a function of r.

youdao

我们用库伦定律解释它，力作为距离r的函数，让我们考虑一下。

We can use the Coulomb force law to explain this where we can describe the force as a function of r.

youdao