The type I and type II alveolar cells appeared swollen, vacuolated and broken with the blood air barrier severely damaged and surfactants significantly decreased.
并对肺泡上皮细胞、气血屏障造成严重的损伤 ，使细胞器出现空泡、肿胀或呈碎裂状改变 ；
Theseresults suggested that the concentration curve was determined mainly by the THOtransport across blood-air barrier in the primary pulmonary circulation.
结果说明呼出气氚水浓度曲线是氚水经肺首次循环时透过血-气屏障的转移所产生。
The thickness of blood-air barrier was measured by image analyzer.
图像分析表明，气血屏障的厚度，随胎龄的增长而变薄。
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