well drilling meaning in English
钻井业
Examples
- When was the first offshore oil well drilled ?
第一口滨海油井是什么时候打的钻？ - Safety protection and control of deep well drilling
深孔钻的安全保护与控制技术 - Offshore oil well drilling platform , ship , oil field
海洋石油钻井平台船舶油田 - Series of hydrogeologic and water well drilling tubings
水文水井钻探管材系列 - Drought relief and well drilling in northwestern india
西北部赈灾及挖井纾旱