单词 | coggings |
释义 | cog3 /kog/ (building)nounA tenon used in cogging transitive verbTo join by means of cogs ORIGIN: Poss cog1 coggˈing noun A type of joint used to join two wooden beams, where the upper beam is bearing on the lower by cutting a tenon in the lower beam and a corresponding notch in the upper |
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