深孔 meaning in Chinese
deep borehole
deep drill hole
deep hole
gulf
Examples
- Safety protection and control of deep well drilling
深孔钻的安全保护与控制技术 - Exploding technology about long hole blasting in rock roadway
岩巷中深孔爆破技术 - Count on estrolabo for small and deep hole processing
细深孔加工细深孔加工 - Improvement of short hole blasting technique
中深孔阶段崩落法在新华钼矿的应用 - Observation and analysis of deep hole blasting vibration
深孔爆破震动的观测与分析