需要指出的是，燃气机热泵的速度调节是有限制的，并不能任意调节，这与发动机和压缩机的工作特性有关。
It should be noted that the rate of gas engine heat pump is limited regulation, and can not be any regulation, which is the work of the engine and compressor characteristics.
在喷气式飞机发动机内位于空气压缩和燃气涡轮之间的主轴是空心的，允许有一个需要最小空间和重量的内部减速轴。
The main shaft between the air compressor and the gas turbine in a jet aircraft engine is hollow to permit an internal speed reduction shaft with the minimum requirement of space and weight.
燃气热泵是利用燃气驱动燃气发动机，并带动压缩机进行制冷循环的空调装置。
The gas engine driven heat pump (GHP) is driven by the gas engine using gas, and driven the compressors for refrigeration circle.
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