A differential resistance model was established to describe the permeation of water vapor across the hollow fiber composite membrane. The reliability of the model was verified by experiment.
建立了水蒸气在中空纤维复合膜中渗透的微分阻力模型，用实验验证了模型的可靠性。
How to accurately measure permeation rates of water vapor and oxygen through packaging materials is very important for developing high quality barrier packaging materials.
而要研制高阻隔性封装材料，首先要解决如何测量水蒸气、氧气和其他活性气体对封装材料的渗透率的问题。
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