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質量是物體的一種基本屬性,與物體的狀態、形狀、所處的空間位置變化無關.不同物體含有的物質的多少不一定相同.物體所含物質的多少叫做物體的質量(mass).物體含有物質的多少叫質量.質量不隨物體形狀、狀態、空間比特…
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