| 单词 | pivot bolt |
| 释义 | > as lemmaspivot bolt pivot bolt n. the central bolt about which a pivot gun oscillates horizontally. ΘΚΠ society > armed hostility > military equipment > weapon > device for discharging missiles > firearm > gun carriage > [noun] > swivel swivel1697 pivot bolt1848 pivot frame1857 1848 Sci. Amer. 16 Dec. 97/3 This lever is united to the frame by pivot bolts CCCC, and it is jointed in the middle by a pivot B. 1970 Which? Mar. 85/2 Most of the shears were weighted so that the balance point was roughly around the pivot bolt. 1994 R. Moody Dry Divide xii. 150 The pivot bolt would make it possible to turn sharp corners, and the hinges would allow each wagon to be tilted separately on the elevator rocker. < as lemmas |
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