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我们用自制的呼吸机─组合体积描记仪系统测定了20只孕龄27天的早产胎兔的被动流速容积曲线和呼吸系统总顺应性，研究肺表面活性物质治疗对它们的影响，以及二者之间的关系，探讨适合新生儿呼吸衰竭时临床应用的肺功能检测方法。
We measured the passive flow velocity curves and respiratory compliance of 20 preterm fetuses with gestational age of 27 days using a home-made ventilator-comb plethysmography system to study the effects of pulmonary surfactant therapy on them and their effects To explore the clinical application of lung function testing method suitable for neonatal respiratory failure.