The experimental study for moderate and high temperature heat pump working fluids had been done in the improved test system.
在改进后的实验台上，进行了中高温热泵工质循环性能实验研究。
The experimental study for moderate and high temperature heat pump working fluids had been done in the improved test system.
在改进后的实验台上，进行了中高温热泵工质循环性能实验研究。
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