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压强是越往下大还是越往上大
更新时间: 2020-09-22 00:00:00  

压强,是越往下大,还是越往上大,这由具体情况决定,通常有两种可能:

1、液体压强与深度有关,在液体密度相同时,深度越深即越往下,液体压强越大;

2、大气压强也与高度有关,但大气压强与高度的关系实际上是大气压强与空气密度的关系,高度越高即越往上,空气越稀薄,空气密度越小,因此大气压也越小。

关键词: 压强 还是

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