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一 浮力: - phyworld.idv.t · 例如,一般我們說汽球會飄上天空,其實應該說汽球浮在空氣上。 (二)阿基米得原理(浮力原理): a、原理:物體在液體中【減輕】的重量,等於物體所受的浮力,也等於該物體【同體積】的液
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