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单词 Allen wrench
释义

Allen wrench

noun

Al·​len wrench ˈa-lən- How to pronounce Allen wrench (audio)
: an L-shaped hexagonal metal bar either end of which fits the socket of a screw or bolt

Word History

Etymology

Allen Manufacturing Company, Hartford, Connecticut

First Known Use

1913, in the meaning defined above

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更新时间:2024/9/22 4:38:54