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《Science of Surveying and Mapping》 2010-01
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Survey accuracy comparison of digital level and optical level

MA Chun-yan,GUO Min,ZOU You-feng(School of Surveying & Land Information Engineering,Henan Polytechnic University,Henan Jiaozuo 454003,China)  
For the high-precision leveling network layout within entire country,geometric standard of measurement has high accuracy and low efficiency.In order to improve the efficiency of precise measurement,this paper designs a closed leveling line in Henan polytechnic university campus.The measure precision of two levels is compared.
【Fund】: 国家自然科学基金项目(40672177)
【CateGory Index】: P224.1
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