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为什么温度计的毛细管越细越准确
更新时间: 2020-09-19 00:00:00  

1、因为当温度计头端的水银量一定时,相同的温度下,受热膨胀的体积是相同的。

2、当毛细管细的时候,相同增加的体积就会在毛细管里被拉伸得比较长,更利于读数和观察,也就越准确。

关键词: 为什么 温度计 毛细管 准确

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