ZYXC-244机械式旋冲螺杆钻具的研制与应用

甘心

Development and Application of ZYXC-244 Mechanical Rotary-Percussive Tool Based on Screw Drill

Gan Xin

吉林大学学报(地球科学版) . 2021, (3): 825 -832 . DOI: 10.13278/j.cnki.jjuese.20190322