a nut screwed down on another to prevent its working loose; (also) a nut specially designed to prevent accidental loosening once it has been…
| 单词 | θ213129 |
| 释义 | society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > nut > lock-nut (2) lock nut1855 a nut screwed down on another to prevent its working loose; (also) a nut specially designed to prevent accidental loosening once it has been… pinching nut1857 = jam-nut n. at jam, n.1 1c. |
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