HO Yinchol,PAK Kumdol,PENG Jianming,ＲI Jaemyong,KIM Yongnam and CHOE Cholho
Analysis of effects of operating parameters on rate of penetration in drilling process with air down － the － hole hammer
HO Yinchol,PAK Kumdol,PENG Jianming,ＲI Jaemyong,KIM Yongnam and CHOE Cholho
Global Geology
.
2021, (1): 64
-70
.
