英语词汇“plumb rule”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	plumb rule
释义	plumb rule a device for determining perpendicularity, consisting of a narrow board with a plumb line and bob suspended from an upper edge. [1350-1400; ME plomreule]
随便看	prepublication prepublish prepuce prepueblo prepunch prepunish prepunishment prepupa prepurchase prepurchaser prepurpose prepurposive prepyloric prequalification prequalify prequarantine prequel prequestion prequotation prequote prerace preracing preradio prerailroad prerailway

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