我可以第一次应用，动量守恒。

And so now I can apply, for the first time, the conservation of momentum.

youdao

这是唯一的方法,自然使动量守恒之道。

That's the only way that nature can conserve momentum.

youdao

我们要再一次假定，动量是守恒的。

Again, we have to assume that momentum is conserved.

youdao

系统作为一个整体，动量是守恒的。

It's just the system as a whole for which the momentum is then conserved.

youdao

系统作为一个整体，动量是守恒的。

It's just the system as a whole for which the momentum is then conserved.

youdao