drilling in

• Application of gas drainage intersect - drill in zhongmacun mine
  中马村矿瓦斯抽放交叉钻孔的应用
• Progress of ocean drilling in polar regions
  极地海洋钻探研究进展
• She had lots of drill in listening
  她在听力方面受过许多训练。
• They hashed out the problem of drilling in great depth
  他们经过长时间的讨论解决了深层钻井问题。
• The department also completed a culling drill in september
  部门亦已在九月完成了一个杀鸡的演习。
• And to think it all started with him doing drills in a cage
  这一切都是从他开始在练习网中开始的。
• Seamless steel pipe for geological drill in
  地质钻探用管
• The workman is drilling in the wall
  工人正在墙上打孔。
• 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
• The workman is drilling in the wall
  工人正在墙上打孔