单词 | ball valve |
释义 | ball valve (once / 472773 pages) n WORD FAMILY ball valve: ball valves USAGE EXAMPLESBut with sales down 50 percent or more, they’ve expanded into party rentals to make up the lost revenue - from ball valves to bounce houses. Washington Times(Apr 19, 2016) An overflow is provided, discharging into the open air to allow the water to escape should the ball valve become defective. Various, Encyclopaedia Britannica, 11th Edit...(2012) He fitted the bucket with a hose that was controlled by a ball valve of the sort used in swimming pool plumbing systems. New York Times(Sep 18, 2010) n any valve that checks flow by the seating of a ball Hyper valve control consisting of a mechanical device for controlling the flow of a fluid |
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