通过实验，得出了发动机转速与热泵性能系数、发动机热效率的关系曲线，并进行了分析。

Through experiment, the relation figures of engine rotation speed, coefficient of performance of heat pump and engine thermal efficiency are presented and analyzed.

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提出了联合性能系数的概念，分析了利用中高温热泵辅助太阳能空调系统的可行性。

The concept of Associated Coefficient of Performance was presented, and the feasibility of air-conditioning system assisted by medium-high temperature heat pump was analyzed.

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热泵是一种节能型加热设备，其性能系数远高于普通锅炉装置。

Heat pump is a kind of heating equipment for energy-saving purpose. Its performance coefficient is much higher than common furnace equipment.

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