总功指的是势能,和动能的总和。

That means the sum of potential energy and kinetic energy.

youdao

所以这是总功，这是不变的。

And so this is the total energy, and this is now a constant.

youdao

所以这是总功，这是不变的。

And so this is the total energy, and this is now a constant.

youdao