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单词 gadding machine
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gadding machine
gadding machine a machine designed to drill straight lines of holes in rock for the insertion of gads, consisting of one or more rock drills mounted on a wheeled platform; cf. gadder n.2
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1877 Vermont Hist. Gazetteer 3 1068/1 One Wardwell machine and two gadding machines, manufactured by said Company, are used in the quarry.
1908 Bull. U.S. Geol. Surv. No. 347 195 A quarry consisting of a pit 12 feet deep was opened on a marble deposit close to tide water, a channeling and gadding machine was installed, and a cutting plant operated by steam power was erected.
2006 Internat. Jrnl. Coal Geol. 67 97/2 The T685WS gadding machine, made by Schrammin Corporation, USA, was employed to drill boreholes.
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更新时间:2024/11/11 5:20:14