救援钻孔用双钻头扭矩自平衡钻进系统理论与实验 Theory and experiment of the dual-bit torque self-balancing drilling system for rescue drilling Lähettänyt globaladmin To, 22.02.2024 - 15:11 Lue lisää 救援钻孔用双钻头扭矩自平衡钻进系统理论与实验 Theory and experiment of the dual-bit torque self-balancing drilling system for rescue drilling
