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- The spiral drill collars are being tried to use. 螺旋钻链正在试用。
- Spiral drill collars made in our plant are in accordance with API standard. 本厂制造的螺旋钻铤按照“API”标准生产和验收。
- They have not measured the length of spiral drill collars and monel collars yet. 他们还没测量螺旋钻铤和无磁钻铤的长度。
- In this article, the auth or specially introduces the structure of impact spiral drill machine and its ope ration techniques. 本文详细介绍了冲击螺旋钻的构造和成孔操作技术。
- The main products are:Slick Drill Collar,Spiral Drill Collar,Nonmagnetic Drill Collar,Heavy Weight Drill Pipe,square and hexagonal Kelly. 并可承接特殊规格的石油钻具产品的生产。
- Impact Spiral Drilling is a new bore-making techni que.Its usage in the anchorage project of deep foundation ditch can solve the p roblem of drilling in the soft and hard cross stratum. 冲击螺旋钻孔是一种新的成孔工艺，在深基坑的锚固技术中成功地解决了软硬互层、夹杂地层的钻进。
- Choosing and Improvement of Spiral Drill for Inclined Hole Machining 斜孔加工中麻花钻的选择及改进
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- Military budget continue to spiral. 军费预算继续上升。
- 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。
- Military budgets continued to spiral. 军事预算继续急遽增加。
- 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。
- A snail's shell is spiral in form. 蜗牛壳是螺旋形的。
- She had lots of drill in listening. 她在听力方面受过许多训练。
- long spiral drilled press-grouting 长螺旋混凝土压灌桩
- 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。
- long spiral drilled press-grouting pile 长螺旋压灌桩
- horizontal spiral drilling method 水平螺旋钻进法
