The engineering thermal calculation, the calculations of different operating conditions, of the resistance of water flow and vapor flow, and of the air leak amount were made.

完成了不锈钢螺纹管凝汽器的工程热力计算、变工况核算、冷却水流动阻力、蒸汽流动阻力和漏气量计算。

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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。

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Biax-orientation Nylon6(BOPA) film is a new type of top grade packaging material with outstanding properties including cold-proof, heat-proof, oil resistance and good gas, water vapor barrier etc.

双向拉伸尼龙6薄膜是一种具有耐寒、耐热、耐油、抗刺穿以及对气体和水蒸气阻隔性优良等性能的新型高档包装材料。

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