起到增加肺泡通气量、预防肺泡萎陷和使萎陷的肺泡重新膨胀的作用。
It increased the alveolar ventilation volume and prevented alveolar from collapse and expanded the collapsed alveolar.
在到期时，肺切除和定量组织学表现来衡量的一小部分肺泡的通气量和表面密度。
At maturity, lungs were excised and quantitative histology performed to measure alveolar air fraction and surface density.
在到期时，肺切除和定量组织学表现来衡量的一小部分肺泡的通气量和表面密度。
At maturity, lungs were excised and quantitative histology performed to measure alveolar air fraction and surface density.
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