我们相信,机械能守恒定理。
它紧跟着，机械能，守恒定理而产生。
It follows immediately from the conservation of mechanical energy.
记住这个，我们能够很放心地,使用机械能守恒定理。
So with this in mind, I feel comfortable to pursue my conservation of mechanical energy.
肯定有什么，基础性的错误，这个机械能守恒定理。
There must be something fundamentally wrong with the conservation of mechanical energy.
我们甚至没有讲过它,当我们运用机械能,守恒定理的时候。
We didn't even talk about it when we did the conservation of mechanical energy.
我们甚至没有讲过它,当我们运用机械能,守恒定理的时候。
We didn't even talk about it when we did the conservation of mechanical energy.
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