It follows immediately from the conservation of mechanical energy.
它紧跟着，机械能，守恒定理而产生。
Well, the word conservative comes from the idea in physics; if the conservation of energy.
“守恒”这个词来自于物理学;,如果说能量守恒。
Well, the word conservative comes from the idea in physics; if the conservation of energy.
“守恒”这个词来自于物理学;,如果说能量守恒。
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