rotary drilling meaning in Chinese
回转钻进
旋式孔
旋转式钻孔
旋转式钻探；回转钻探
旋转钻井法
旋转钻探
转盘钻井
Examples
- The improvement of ky - 150 type rotary drill travel unit
150型牙轮钻机行走部改造 - Rotary drill rod used for coal mining roofbolter
煤矿锚杆钻机用回转钻杆 - Prevention and treatment of bury drills during rotary drilling
旋挖钻进埋钻事故的处理实例及预防措施 - Hydraulic system design and analysis for hydraulic rotary drilling rig
全液压旋挖钻机液压系统设计与分析 - Analysis of energy for rotary drilling in weathered granite formation
风化花岗岩地层旋转钻进中的能量分析