conservation of mechanical energy 机械能守恒
- We have also the conservation of mechanical energy.
还是机械能,守恒。 - It is explained that the law of conservation of mechanical energy obeys relativity principle of mechanics.
系统地阐明机械能守恒定律无条件服从力学相对性原理。 - Gravity is the only force that to use the conservation of mechanical energy because gravity is a conservative force.
重力是唯一起作用的,可以用,机械能守恒定理,因为重力恒定。
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