Butterfly valve
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Check valve
Flow control valve
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Automobile accessory power
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Bailer (hydrogeology)
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Esophageal speech
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Drain-waste-vent system
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Chemigation valve
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Double check valve
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Backflow prevention device
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Ball valve
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One-way
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Siphon
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USS S-44
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Ratchet (device)
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Hydraulic shock
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Pumpjack
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Fuel pump
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Water gun
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Ganglion cyst
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Injection moulding
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Sluice
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Wireline (cabling)
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Pneumothorax
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Fire hydrant
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Toy gun
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Vacuum brake
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Bellows
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Flush toilet
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Diaphragm pump
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Heart valve
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Baby bottle
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RBMK
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Flat-twin engine
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Railway air brake
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Fire sprinkler system
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Boiler
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Two-stroke engine
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Hypergolic propellant
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Tire
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Flood
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Valve
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Hydraulic ram
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Diode
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Bagpipes
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One-way valve
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