机译:运行参数对钻孔过程中渗透速率的影响分析
School of Information Science and Technology Kim Chaek University of Technology Pyongyang 999093 D.P.R.Korea;
School of Resource Exploration Engineering Kim Chaek University of Technology Pyongyang 999093 D.P.R.Korea;
College of Construction Engineering Jilin University Changchun 130026 China;
College of Construction Engineering Jilin University Changchun 130026 China;
School of Resource Exploration Engineering Kim Chaek University of Technology Pyongyang 999093 D.P.R.Korea;
School of Resource Exploration Engineering Kim Chaek University of Technology Pyongyang 999093 D.P.R.Korea;
School of Resource Exploration Engineering Kim Chaek University of Technology Pyongyang 999093 D.P.R.Korea;