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肺泡表面活性物质（ＰＳ）的表面活性特征，即降低表面张力的作用及其相关特性，是ＰＳ对于呼吸生理重要性的生物物理学基础，本文仅就其测量方法和部分类型ＰＳ制剂的表面活性特征作一综述。
The surface activity characteristics of alveolar surfactant (PS), the role of reducing surface tension and its related properties, are the biophysical basis for the physiological importance of PS to respiratory physiology. Only the measurement methods and the surface activity of PS preparations Features for a review.