We call these internal forces.

我们称之为内力。

youdao

We call them internal forces.

我们称为内力。

youdao

That's all internal forces.

它们都属于内力。

youdao

The miracle is that all these internal forces eat each other up.

奇迹就是，所有内力相互抵消。

youdao

Internal forces don't matter no matter what happens.

系统内力不计，无论发生了什么。

youdao

Internal forces don't matter no matter what happens.

系统内力不计，无论发生了什么。

youdao