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单词 Allen key
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释义  Al·len key /ˈælən kiː/ noun [countable] British English  a tool used to turn an Allen screw 艾伦内六角螺丝扳手 SYN American English Allen wrenchExamples from the CorpusAllen key• A sheet metal punch is drawn through by being tightened with an Allen key.Origin Allen key (1900-2000) From the Allen Manufacturing Company of Hartford, Connecticut, USAAl·len key nounChineseSyllable  used to tool screw Corpus a turn an Allen
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