单词	Allen key
释义	Allen keyAl‧len key /ˈælən kiː/ noun [countable] British English Word Origin WORD ORIGINAllen key Origin: 1900-2000 From the Allen Manufacturing Company of Hartford, Connecticut, ➔ USA Examples EXAMPLES FROM THE CORPUS A sheet metal punch is drawn through by being tightened with an Allen key. a tool used to turn an Allen screw SYN Allen wrench American English
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