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1.先用天平測出米粒質量M 2.將瓶注滿水,稱出總質量M1 3.將米粒放入瓶中,蓋上蓋子,擦乾瓶外壁的水,稱出總質量M2 4.計算:M排=(M+M1-M2),V排=M+M1-M2/P水,P米=M/V=M/V排=MP水/M+M1-M2
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