| 单词 | Allen key |
| 释义 | Allen key From Longman Dictionary of Contemporary EnglishAllen keyAl‧len key /ˈælən kiː/ noun [countable] British Englisha tool used to turn an Allen screw SYN Allen wrench American EnglishExamples 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, USA |
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