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-新都网

单词	plumb rule
释义	plumb rule noun A plumb line attached to a board, used by builders and surveyors.It is customary in laying blocks to use a plumb rule to ascertain the level alignment of the block which is being positioned on the wall.... It is used in a horizontal position as a level and in a vertical position as a plumb rule.
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