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没有量杯怎么知道多少毫升
更新时间: 2020-11-06 00:00:00  

根据密度计算重量,然后用天平秤重量。一般来说,不论什么物质,也不管它处于什么状态,随着温度、压力的变化,体积或密度也会发生相应的变化。固态或液态物质的密度,在温度和压力变化时,只发生很小的变化。

关键词: 没有 量杯 怎么 知道 多少 毫升

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