P2隨高度減少,液體自己也不上去 :-) 。液體比空氣重,“長”的那一段液體總會把“短”的一段“拉”下來,除非有人在高處吸水喝 :-)
換成比空氣還輕的流體就好玩了,比如氫氣 :-)
P2隨高度減少,液體自己也不上去 :-) 。液體比空氣重,“長”的那一段液體總會把“短”的一段“拉”下來,除非有人在高處吸水喝 :-)
換成比空氣還輕的流體就好玩了,比如氫氣 :-)
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