Lung airway tree is the gas transport channels between pulmonary capillary vessel and atmosphere.

肺气管树是人体肺毛细血管与大气之间进行气体交换的通道。

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Lung airway tree is the gas transport channels between pulmonary capillary vessel and atmosphere.

肺气管树是人体肺毛细血管与大气之间进行气体交换的通道。

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