实验还考察了料液温度和流率对膜通量及热效率的影响，利用膜及膜两侧边界层内传热传质理论对此进行了分析讨论。
The influence of operating conditions on mass transport rate and evaporation efficiency was discussed by applying traditional mass and heat transfer theories to membrane.
通过对燃料燃烧的放热效率及燃烧生成物进行分析，进而对柴油发动机富氧燃烧的可行性进行理论分析。
The feasibility of oxygen-enriched combustion in diesel engines was analysed in theory from aspects of heat release rate of fuels and combustion products.
本文研究的课题是低温辐射加热电缆的研制及应用环境下热场分析，求解应用环境下的热效率问题，为低温地热电缆的国产化和应用提供了理论基础。
The work in this paper develops of low temperature radiation heating cable, analyses thermal field under application environment, and affords theoretic basic for making the cable in our country.
理论分析和实验结果表明，椭圆腔板束有利于降膜蒸发，能有效地提高蒸发速度和传热效率。
The theoretical analysis and experimental results show that the elliptic cavity is good for falling film evaporation and can effectively enhance the speed of evaporation and heat transfer efficiency.
理论与实验表明，它具有热效率高、寿命长、煤种适应性强、劳动强度小和污染小等优点。
Theory and experiment stated that it had the advantages of high thermal efficiency, long lifespan, suiting several kinds of coal, labor saving, decreasing pollution and so on.
本文首先从理论上分析了传统汽油机热效率低的原因，指出其“单点点火、火焰传播”的燃烧方式是症结所在。
First of all, the reasons why the combustion efficiency of gasoline engines is lower than diesel were analyzed theoretically.
本论文首先通过理论分析明确了影响燃气热水器热效率的因素，根据实验得出的数据显示，燃气压力是影响热水器热效率的重要因素之一。
According to the experimental data, it's easy to find that the gas pressure is an important factor to affect the thermal efficiency of the water heater.
本论文首先通过理论分析明确了影响燃气热水器热效率的因素，根据实验得出的数据显示，燃气压力是影响热水器热效率的重要因素之一。
According to the experimental data, it's easy to find that the gas pressure is an important factor to affect the thermal efficiency of the water heater.
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