作用和反作用 作用与反作用
Action and reaction Action and reaction
以上为机器翻译结果，长、整句建议使用 人工翻译 。
利用作用力做功和反作用力做功的代数和与参照系的选择无关这样的结论，计算质点组的内力作功之和将非常简捷方便。
The sum of work of effect and reaction has nothing to do with the choice of criterion. With this conclusion, it is very easy to work out the sum of particle and work of internal force.
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