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- pereussion rotation drilling 冲击回转钻进
- direct cyclic rotation drilling well 正循环回转钻井
- Our balance and rotation drills will teach you to do this effortlessly and rhythmically. 平衡和转身练习，将教会你省力并有节奏地利用躯干在水中前行。
- In recent years, the rotating drill that fit out every kind of drilling equipment, with multi-function form, in the capital construction engineering, bring into play the bigger function, suffer the widespread concern. 摘要近年来，旋挖钻机配备各种钻具，以多功能的形式在基本建设工程的钻孔灌注桩施工中发挥了较大的作用，受到普遍的关注。
- The drilling troops mustered on the hill. 演习部队在小山上集合起来了。
- The workman is drilling in the wall. 工人正在墙上打孔。
- Drilling is cutting a hole with a drill. 钻削就是用钻头钻一个孔。
- The seasons follow each other in rotation. 四季循环交替。
- a rotating drill powered by an electric motor. 用电发动机驱动的旋转的钻子。
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- The noise of the drilling is intolerable. 钻孔的噪音让人受不了。
- A rotation of personnel; crop rotation. 员工的轮流替换; 农作物的轮作
- The sound of that drill jangles horribly on the nerves. 那台钻机的声音响极了，十分刺耳。
- You'd better set a goal before you start the drill. 练习开始前，你最好设定一个目标。
- After a long drill he told the squad to fall out. 操练了好半天之后，他让这个班解散了。
- The rotation of crops keeps the soil healthy and fertile. 谷物轮种使土壤保持了肥力和高质。
- She had lots of drill in listening. 她在听力方面受过许多训练。
- This drill can bore through rock. 这台钻机能钻透岩石。
- The dentist's drill made a lot of noise. 牙钻发出很大的噪音。
- The sun appears to rise and set because of the earth's rotation. 因为地球在自转,看上去就有了日出和日落。
