输送泵
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variable-delivering pump 变流量泵
pump-delivering concrete 泵送混凝土
If the hybrid rocket needs to be shut down in a hurry all you need do is turn off the pump delivering the oxidiser.
ECONOMIST: The land-speed record
He said well-designed systems can operate effectively in the UK, delivering in excess of three units of heat for every unit of electricity used to pump the heat in and around the property.
BBC: Heat pumps 'need tighter regulations'
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