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1用託盤天平稱出N粒大米的質量為M,則一粒大米的平均質量為M/N.2借用一個重量可不計的塑胶袋,裝N粒大米,測得其重量為G(重力值),則平均重量為G/N.量測密度:用量筒量取A毫升油(不推薦用水,因為大米會吸水使質量和…
1千克/每小時=0.001立方米/小時
1000KG
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