GEOROBOT SYSTEM AND ITS APPLICATION TO DEFORMATION MONITORING OF WUQIANGXI DAM
zhang xuezhuang; wang aigong; zhang chi(central south university of technology. 410083. changsha)ke tianhe; luo deqi; tian dagui; kuang dingqin(hunan wuqianxi hydroelectric construction company. 410007. changsha)jian wuren (changsha laser photo-electronic