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密度越大是不是越重
更新时间: 2020-09-07 00:00:00  

1、密度:物质每单位体积内的质量;

2、质量:是物体所具有的一种物理属性,是物质的量的量度,它是一个正的标量;

3、质量等于体积乘密度。当密度增大时,质量不一定增大。

关键词: 密度

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