TY - Journal of Yangtze River Scientific Research Institute A1 - SONG Kun, YI Zheng, SONG Qi T1 - Rock Mass Structure Model of High and Steep Slope Based on Unmanned Aerial Vehicle 3D Point Cloud Y1 - 2024-05-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 103 EP - 107 VL - 41 IS - 5 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20221737 ER -