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clevis n. U形夹 U形夹 clevis n 1: a coupler shaped like the letter U with holes through each end so a bolt or pin can pass through the holes to complete the coupling; used to attach a drawbar to a plow or wagon or trailer etc. Clevis \Clev"is\, n. [Cf. {Cleave} to adhere, {Clavel}.]
A piece of metal bent in the form of an oxbow, with the two ends perforated to receive a pin, used on the end of the tongue of a plow, wagen, etc., to attach it to a draft chain, whiffletree, etc.; -- called also {clavel}, {clevy}. [1913 Webster] Clew
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