抽水泵打一字？
泵
抽水泵打一字谜底是什么？
抽
水泵抽水机
Water pump is a kind of equipment that drives water and other liquids in various occasions by using the power of mechanical energy. It is widely used in industrial, agricultural and domestic water supply, drainage, irrigation and so on. In recent years, with the continuous progress of science and technology, there are more types of water pumps appearing in our lives. The most common type of water pumps is centrifugal pump, submersible pump and screw pump. Centrifugal pumps mainly rely on impeller to increase the pressure flow rate; submersible pumps are all submerged into the liquid to be pumped for suction operation; screw pumps can also achieve high lift when their rotational speed is lower than that of other kinds of fuel-driven machines.
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