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水的比重是多少
更新时间: 2021-05-26 23:06:22  

严格地说,应是水的重度,单位体积的质量------Kg/m3,它与温度相关,当水在4℃时的重度为1000Kg/m3,当温度上升时,重度要下降。比重是某种物质重度与水的重度之比,它没有单位,如钢的重度为7850Kg/m3,则与水的重度比为7.85,即说它的比重为7.85。自己与自己相比,当然是1。

关键词: 比重 多少

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