本文应用传热学的理论知识，分析了真空蒸发制盐的加热室的传热机理。
This paper analyzed the mechanism of heat transferring with applications of the calorifics.
最大的问题是，把理论知识应用于具体实践时，障碍重重。
The most difficulty matter was that I couldn't put the theories into practice easily.
最大的问题是，把理论知识应用于具体实践时，障碍重重。
The most difficulty matter was that I couldn't put the theories into practice easily.
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