Hence the name: root mean square.

均方。

And that variable is the root-mean-squared, or RMS value, of current.

是电流的均方或 RMS 。

And the root mean square speed is slightly to the right of that.

和均方 这个右边有点。

The square root of the average squared velocity is what we call the root mean square speed.

率平方的平方 就是我们所说的均方。

Today, you learned about the kinetic theory of gases, and how to calculate the root mean square speed.

今天，我们了解了气体的动力学理论， 以及我们如何计算均方。