凝结热（heat of coagulation）是指单位质量蒸汽凝结时放出的热量，数值上等于同温度下的汽化热。
本文提出了微圆管内环状流凝结换热的分析模型，考虑了重力、汽液界面剪切力、表面张力以及界面凝结热阻的作用。
Considering gravity, interfacial shear stress, surface tension and interfacial thermal resistance, the analysis model for annular flow condensation heat transfer in microtube was presented.
有风或是有热的时候，露珠凝结不起来。
热蒸馏涉及到加热：沸腾的水变成水蒸气- - -盐分留了下来- - -被收集的蒸汽冷却后凝结成水。
Thermal distillation involves heat: Boiling water turns it into vapor-leaving the salt behind-that is collected and condensed back into water by cooling it down.
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