单词	trunnion
释义	trunnion noun trun·​nion ˈtrən-yən  : a pin or pivot on which something can be rotated or tilted especially : either of two opposite gudgeons on which a cannon is swiveled Example Sentences Recent Examples on the Web Chicago’s first trunnion bascule bridge — is built over the North Branch of the Chicago River. Chicago Tribune, 26 June 2022 The project includes replacing the trunnion, a critical piece that allows the bridge to raise and lower, o the more than a century-old northbound span of the bridge. oregonlive, 12 Sep. 2020 The project includes replacing the trunnion, a critical piece that allows the bridge to raise and lower, on the more than a century-old northbound span of the bridge. oregonlive, 12 Sep. 2020 Crews have been replacing trunnion parts of the 103 year old structure that help lift and lower the bridge. oregonlive, 25 Sep. 2020 The lane closure is scheduled from Sept. 28 - Oct. 4 as construction crews reconnect the median barrier and wrap up from the trunnion project. oregonlive, 25 Sep. 2020 When the Interstate Bridge replacement project known as the Columbia River Crossing collapsed, plans accelerated to replace the aging trunnion. oregonlive, 27 Aug. 2020 State officials first spotted a crack in a trunnion on the northbound span, which functions like an axle and allows for the bridge to move up and down, more than two decades ago. oregonlive, 27 Aug. 2020 The $13 million project will replace the trunnion on the north span. oregonlive, 18 Oct. 2019 See More Word History Etymology French trognon core, stump First Known Use circa 1625, in the meaning defined above
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