英语词汇“leveling rod”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	leveling rod
释义	leveling rod noun A graduated pole with a movable marker, held upright and used with a surveying instrument to measure differences in elevation. Also called leveling pole, leveling staff.Rod scale error arises when leveling rods are shorter or longer than indicated by the graduations.... Then the image of the vertical leveling rod will be seen through the telescope as horizontal. The leveling rods were calibrated in March 1995 by the U.S. Navy Gage and Standards Laboratory, Pomona.
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