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单词 Allen screw
释义

Allen screw

noun

Al·​len screw ˈa-lən- How to pronounce Allen screw (audio)
hardware
: a screw with a hexagonal socket in its head that is designed to be used with an Allen wrench

Word History

First Known Use

1917, in the meaning defined above

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更新时间:2025/1/9 19:55:21