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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Aiming at the total economy of the system, the economies of the engine and the gas-heating pump are analyzed respectively. And the power and economy of gas-heating pumps are coordinated.

从系统总体经济性角度出发，分析了发动机的经济性能与燃气机热泵的经济性，同时协调燃气机热泵的动力性与经济性；

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Ground resource heating pump air-conditioning system is the most friendly and most effective heating and Cooling system air-conditioning system to the environment that people may utilize till today.

地源热泵空调系统是目前可以利用的对环境最友好和最有效的供冷、供暖空调系统。

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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.

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