把反作用力當成動力來用
常見的就
火箭噴射 直昇機螺旋槳
船隻排水 鳥類振翅
甚至是你游泳時把水往後推
利用反作用力來往前是不是太low啦?
有沒有比較新潮的產生動力方式?
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原來 男人歌
唱的都是不敢說的心情
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