OSUVA - Selaus tekijän "Qin, Xiaolin" mukaan
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钻孔救援连续缆管储放设备研制
Gao, Ke; Niu, Xin; Zhao, Yan; Qin, Xiaolin; Lyu, Xiaoshu; Xie, Xiaobo (China Coal Research Institute, 03 / 2023)
articleThe double-bit bionic self-balancing continuous drilling technology has the advantages including requiring no drilling rig, high drilling speed and slight disturbance to the borehole wall. It is one of the key potential ...