About YU Xiaoping
About Coll. of Geoexploration Sci. and Technol. JiLin Univ., Changchun
About YANG Guodong
About Coll. of Geoexploration Sci. and Technol. JiLin Univ., Changchun
About WANG Fengyan
About Coll. of Geoexploration Sci. and Technol. JiLin Univ., Changchun
About LIU Cai
About Coll. of Geoexploration Sci. and Technol. JiLin Univ., Changchun
About ZHANG Hongbo
About ChangChun Normal Univ., Changchun
About MENG Lingshun
About Coll. of Geoexploration Sci. and Technol. JiLin Univ., Changchun
About XU Huiping
About Coll. of Ocean and Earth Sci. Tongji Univ., Shanghai
About HU Ting
About Coll. of Geoexploration Sci. and Technol. JiLin Univ., Changchun
About Cehui Kexue
About elevation control point
About ellipsoid
About leveling(surveying)
About geoid
About mathematical model
About approximation method
About transformation and conversion
About GPS
About GPS
About ellipsoid
About Photogrammetry,aerial photograph
About GPS
About 高度
About 研究