METHODS: The rat model of cirrhosis was prepared with compound factors.
方法：用复合因素复制大鼠肝硬化模型。
Conclusion: 1 the animal cirrhotic model established by compound factors is the ideal model for the hepatopulmonary syndrome study.
结论：1复合因素所致的肝硬化模型是研究肝肺综合征较为理想的动物模型。
Based on experimental data, puts forward a series of compound factors influencing ventilation effectiveness, and develops empirical formulas for predicting the ventilation efficiency.
根据大量的实验资料，分析提出了影响通风效率的若干复合因素，得出了预测置换通风效率的经验式。
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