Objective: To evaluate the variation of the lung volume in acute respiratory distress syndrome (ARDS) dogs when PEEP set at levels of different inflection points on the pressure volume(P-V) curves.
目的：探讨根据压力-容积（P-V）曲线选择不同水平的呼气末正压（PEEP），急性呼吸窘迫综合征（ARDS）犬肺容积的变化情况。
The variation laws of wearing character on V - packing are studied in the whole working life. The wearing character include the friction force, axial extrusion stress and axial pressure distribution.
对V形密封在整个工作寿命中，轴向挤压应力、轴向压力分布、摩擦力等特性变化进行实验研究。
According to Faraday's Law of Electromagnetic Induction, using the reference direction of circuit variation, it can find a method of V-A Equation made by mutual inductive circle at its option.
本文依据法拉第电磁感应定律，利用电路变量的参考方向，找出了获得任意情形下互感线圈v - A方程的一种方法。
Variation potential (V. P.) transmission in the xylem of willow plantlet was recorded using outside cell electrode records.
用胞外电极记录了柳茎木质部中的变异电波传递。
The results of observation on the spot showed that the variation of air relative humidity in the gangue pile habitat at daytime took on a "v" shape trend.
实地观测结果表明：煤矸石山生境在昼间的空气相对湿度呈“V”字型变化趋势。
Objective To evaluate the variation in vitro microleakage of wedge-shaped class V restorations filled with flowable composites and compomer and GIC.
目的研究可流动复合树脂充填楔状缺损离体牙模型的边缘微渗漏情况。
Objective To evaluate the variation in vitro microleakage of wedge-shaped class V restorations filled with flowable composites and compomer and GIC.
目的研究可流动复合树脂充填楔状缺损离体牙模型的边缘微渗漏情况。
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