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LI Pan-yi;SHAN Wen-jun;CHU Wei;WU Xiao-jian;LI Yan-ning;Shandong Zhaojin Geological Survey Co.;Ltd.;Beijing Institute of Exploration Engineering;Shanxi Province Coal Geology 114 Prospecting Institute;
New Idea of Cutting Teeth Arrangement Design for PDC Rock Bit
KIM Yong-nam;CHEN Zong-tao;YU Chang-yong;DUAN Long-chen;Kim Chaek University of Technology;Faculty of Engineering;China University of Geosciences;Pyongyang University of Architecture;