单词	ball valve
释义	ball valve noun : a valve in which a ball regulates the aperture especially by its rise and fall due to fluid pressure, a spring, or its own weight Example Sentences Recent Examples on the Web Then, shortly after the tap, install a full-flow ball valve. Merle Henkenius, Popular Mechanics, 25 June 2021 The Ivy Rain Barrels come with locking, child-proof lids and have protective screening against mosquitoes and a 3/4-inch ball valve to connect to a garden hose or another barrel. Laura Groch, San Diego Union-Tribune, 16 Oct. 2020 Hughes rotated a ball valve a quarter-turn to launch, and the rocket leapt skyward with an infernal hiss. David Howard, Popular Mechanics, 30 Aug. 2020 Word History First Known Use 1804, in the meaning defined above
随便看	kelson kelsons kelt kelter kelters kelthanes Keltic kelties kelts keltsy kelty kelvin Kelvin balance Kelvin's law kelvins Kemalism Kemalist kemancha kemb kembed kembing Kemble kembs Kemerovo kemiri

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