摘要
Abstract
An introduction was made on the working principle,error sources and characteristics of electronic level.Taking the elevation control survey for the channels of a water diversion project as example,the author discussed the observation operation,analyzed the precision and error of data,summarized the shortcomings of electronic level in practical application,and put forward relevant improvement suggestions.Actual example was presented to demon-strate the advantages and applicability of electronic level in elevation control survey.关键词
电子水准仪/控制测量/i角误差Key words
electronic level/control survey/i angle error分类
天文与地球科学
