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| English | Chinese |
| heat pump A device which transfers heat from a cooler reservoir to a hotter one, expending mechanical energy in the process, especially when the main purpose is to heat the hot reservoir rather than refrigerate the cold one | 热泵 (一种由温度较低的储槽将热量传送到温度较高的热源的装置，在传递过程中消耗机械能，特别是在主要目的是升温而非降温时消耗的机械能更多。) |
| relay pump stations | 管路中的替续中继泵站 |
| water pump A machine or apparatus used to lift water, usually from a well or borehole, which is powered manually or by engine, wind or some other source | 水泵 (通常从水井或井眼来提升水位的机器或设备，通过手动或发动机、风或其他动力来源。) |