The natural heat expansion center of boiler will change with the change of operation condition.
锅炉的自然热膨胀中心是随着工况的变化而变化的。
The thermometers account for fuel expansion in the sometimes-blistering engine heat.
温度计用来计量在不时冒烟的发动机热量中燃料的扩散程度。
Heat is the cause of the expansion of matter.
热是物体膨胀的原因。
So the expansion against lower pressure draws less heat from the hot reservoir right.
所以压强较低时的膨胀，从高温热源吸收的热量更少。
Study on the performance of a direct expansion solar-assisted heat pump system;
本文建立了直接膨胀式太阳能热泵（直膨式太阳能热泵）系统的实验装置。
Study on the performance of a direct expansion solar-assisted heat pump system;
本文建立了直接膨胀式太阳能热泵（直膨式太阳能热泵）系统的实验装置。
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