oil well

• The state expropriated all the oil wells
  国家征用了所有的油井。
• Verification regulation of weight indication gauge for oil well drilling
  石油钻井指重表检定规程
• Verification regulation of reckon by time for mater in the oil well
  石油下井仪表用计时器检定规程
• The oil workers are drilling an oil well
  石油工人正在打油井。
• Research and design on antenna of wireless gauge in deep oil well
  井下无线数据交换器天线研究与设计
• Research and application technique of the corrosion inhibitor of oil well
  油井缓蚀剂的研究与应用技术
• The state expropriated all the company ' s oil wells during the war
  在战时，国家徵用那公司所有的油井。
• Experimental study on action of latex on cement slurry of oil well
  胶乳对油井水泥浆作用机理的实验研究
• Kuwait oil wells yield nearly 500 times more than u . s . wells
  科威特油井的产油量几乎是美国油井的500倍。
• Well completion technique application of viscous oil well in liaohe oil field
  辽河浅海油田大管径固井技术