The diagram of working principle of the hot water system based on heating pump and constant temperature and pressure is introduced.

给出了热泵式恒温恒压供热水系统的工作原理框图，对温度控制系统和压力测控系统设计作了详细叙述，并给出了设计原理框图。

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Heat is generated via an air-water-heating pump whereby the blast apparatus, which causes a noise, is placed outside together with the heat exchanger.

通过水汽加热泵装置生成热量，它会在热交换器内产生噪音。

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In underground water source heating pump air-conditioning system of one guesthouse project, the heating pump unit does not always run at full load status.

某宾馆工程地下水源热泵空调系统中，热泵机组在实际运行中不总处于满负荷运行状态。

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At first I thought this was cool, until I watched the first pot and remembered how simple a coffee maker is: a heating coil and a pump.

FORBES: Hands-On: Bodum's 'Pour-Over' Coffee Maker

Refining-capacity constraints will keep gas prices up at the pump and for heating oil.

FORBES: Paul Maidment On Energy

The real world range has also been improved with the introduction of a new heating system which is 70 per cent more efficient through the use of a heat pump in the system.

ENGADGET: New Nissan Leaf comes to the UK with battery leasing option, extended range