turnbuckle

英 ['tɜːnbʌkl]美 ['tɝn,bʌkl]

n. 套筒螺母；螺丝扣

英文词源

turnbuckle (n.)

also turn-buckle, 1703, "catch or fastening for windows and shutters," from turn (v.) + buckle (n.). Meaning "coupling with internal screw threads for connecting metal rods" is attested from 1877.

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