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1.The lungs are separated into smaller air sacs called alveoli.
肺部被分为更小的空气囊,称为肺泡。
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2.The interalveolar septum is a thin membrane that separates the alveoli.
肺泡隔是一层薄膜,将肺泡分隔开。
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3.During sleep, the interalveolar septum collapses to allow for better gas exchange.
在睡眠时,肺泡隔会塌陷,以便更好地进行气体交换。