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https://en.wikipedia.org/wiki/Pump
Pump - Wikipedia
A small, electrically powered pump A large, electrically driven pump for waterworks near the Hengsteysee, Germany A pump is a device that moves fluids (liquids or gases), or sometimes slurries, [1] by mechanical action, typically converted from electrical energy into hydraulic or pneumatic energy. Mechanical pumps serve in a wide range of applications such as pumping water from wells, aquarium ...