equal and contrary reaction 中文意思是什麼
equal and contrary reaction
解釋
大小相等-
To every action there is always opposed an equal reaction ; or, the mutual actions of two bodies upon each other are always equal, and directed to contrary parts
兩個物體的相互作用力總是大小相等,方向相反,同時出現或消失且作用於同一直線上。
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