暖通空调中热泵空气源热泵水源热泵地源热泵的工作原理heatpumps
虽然通过多个泵pumps和阀valves控制,并没有一种部件称为热泵heatpump
nozzle and combustion chamber powers the fuel and oxidizer pumps
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take a deep breathe and act accordingly call emergency services
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