P2随高度减少,液体自己也不上去 :-) 。液体比空气重,“长”的那一段液体总会把“短”的一段“拉”下来,除非有人在高处吸水喝 :-)
换成比空气还轻的流体就好玩了,比如氢气 :-)
P2随高度减少,液体自己也不上去 :-) 。液体比空气重,“长”的那一段液体总会把“短”的一段“拉”下来,除非有人在高处吸水喝 :-)
换成比空气还轻的流体就好玩了,比如氢气 :-)
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