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中文摘要：
主要对运动过程中穿过回热器与换热器交界面的流体微团的热力过程进行了分析，并推导了回热器和换热器内不同流体微团之间的位移关系；通过对交界面附近微团吸放热的分析研究，得到了回热器与换热器之问的热量交换关系，证明了理想回热器的热效率正好等于卡诺效率。
英文摘要：
The thermodynamic processes and cycles of those gas parcels passing through the interface between the heat exchanger and the regenerator were analyzed in Lagrangian＇ s view. The amount of heat exchange between the heat exchanger and the regenerator was calculated. The displacement relationship of different gas parcels was obtained. It was proved that the thermal efficiency of an ideal regenerator equals to Carnot efficiency.
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