| 单词 | preventer bolt |
| 释义 | > as lemmaspreventer bolt preventer bolt n. ΚΠ 1815 W. Burney Falconer's New Universal Dict. Marine (rev. ed.) Preventer-Bolts, are bolts driven in the lower end of the preventer-plates, to assist the strain of the chain-bolts. 1891 Lloyd's Reg. Rules & Reg. (1996) §46 xvi If..the whole of the inside bolt fastenings, including fastenings of deck, frame bolts, and bolts in iron straps on timbers, and also the chain and preventer bolts, be of properly galvanized iron. 1979 Oil & Gas Jrnl. (Nexis) 24 Dec. 58 An analysis of the screw jack formula applied to preventer bolts shows that a major contributing factor to the torque required to tighten the bolt properly is friction incurred. < as lemmas |
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