甲,P=P0-液体压强.
乙,P=P0+液体压强.
丙,P=P0.
试管中有一段被水银柱密封住的气柱,将此试管分别按如图甲、乙、丙所示放置,若空气柱的压强为p,大气压强为p0,则满足p
试管中有一段被水银柱密封住的气柱,将此试管分别按如图甲、乙、丙所示放置,若空气柱的压强为p,大气压强为p0,则满足p
物理人气：766 ℃时间：2020-03-31 13:59:26
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