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单词 castle-nut
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castle-nut
castle-nut n. a castellated nut (see castellated adj.).
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society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > nut > other nuts
box nut1794
union nut1835
castle-nut1902
1902 Automobile Rev. July 1 Castle nut, a nut having three grooves cut across its top face to receive a split pin.
1940 Chambers's Techn. Dict. 141/2 Castle nut, a six-sided nut in the top of which six radial slots are cut. Two of these line up with a hole drilled in the bolt or screw, a split pin being inserted to prevent loosening.
extracted from castlen.
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更新时间:2025/1/24 13:11:12