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- percussion drilling system 冲魂井方法
- Diamond drilling replaced percussion drilling. 金钻探取代了冲击钻探。
- The floor that stands by a floor in strong bottom digs a hole with percussion drill, knock nog, get on the traditional thread binding that play a base, secure with nail. 在强下部靠近地板的地板用冲击钻打一排孔，敲入木钉，把踢脚线装上，用钉子固定。
- The flourishing top-drive drilling system in the past 20 years has accomplishes a historic leap of rig modernization. 20多年来世界上蓬勃发展的顶部驱动钻井装置，实现了钻机现代化的历史性跨越。
- The forming mechanism of the bias force is the key to the study of the modulated steerable rotary drilling system. 导向力的形成机理是研制旋转导向工具的核心。
- Weatherford casing drilling system, then only a single time, there is no drilling from the time the next drill. 威德福套管钻井系统则只有接单根的时间，没有起钻下钻的时间。
- The air foam clockwise circulating and percussion drilling technology was practiced in the Africa that lacks water.It also got over the problem to drill in the very hard and leakage water rock. 应用空气泡沫正循环、气动潜孔锤钻进技术,实现了在非洲大陆严重缺水地区施工,克服了对坚硬岩石和漏失层钻进困难的问题。
- Its drilling system uses a 380-ton protective casing over the wellhead that is about the size of a six-story office building. 它的钻探系统采用了重380吨、约六层办公大楼大小的保护罩（防爆装置）来保护井口。
- The measurement of the drilling inclination is the key of the system success-fail in the VDS (vertical drilling system) controlled by microcomputer. 摘要在微机自动控向垂钻系统中，钻孔的倾斜角测量是系统成败的关键因素。
- Model DQ70BS top drive drilling system (TDDS)is developed based on Model DQ60D and Model DQ60P DC TDDS and Model DQ20Y hydraulic TDDS. 摘要在DQ60D、DQ60P直流电顶驱和DQ20Y液压顶驱的基础上，研制了DQ70BS交流变频顶部驱动钻井装置。
- This paper introduces the automatic drilling principle, the hardware composition and software program in the windlass percussive drilling by the microcomputer control system. 介绍了卷扬式冲击钻进过程中，微机控制实现自动钻进的基本原理、硬件的组成和软件的设计。
- Complete range of various capacities, suitable for professional use on portable and percussion drills. 拥有可涵盖各种夹持力之完整性，适用于可携式电钻之专业用途。
- A new scheme which is baed on variable parameter vibration drilling for different hole part and a variable parameter vibration drilling system is built up. 首次提出在每个孔加工的不同区段采用不同参数的变参数振动钻削的新思路，并建立了变参数振动钻削系统。
- The differentiae between the different horns are analyzed with examples, and the compound horn is commended to be used when designing the ultrasonic vibration drilling system. 用实例分析了几种变幅杆的不同点,并指出设计超声振动钻削声学系统时推荐采用复合变幅杆。
- percussion drilling cast-in-place pile 冲孔灌注桩
- The closed loop control of the stabilizing platform on the rotary steering drilling system is the key technique of the modulating rotary steering drilling system. 旋转导向钻井工具稳定平台的闭环控制是调制式旋转导向钻井系统的关键。
- Drilling riser is the key equipment for oil and gas development in deep water.The motion of floater in drilling system and wave load may lead to fatigue failure. 钻井隔水管是深水油气田开发的关键装备，钻井系统浮体运动与波浪载荷可能导致隔水管的疲劳失效。
- percussion drill hole grouting pile 冲孔灌注桩
- cylindrical shank percussion drill 圆柱柄冲击钻
- Ho, R. G. (1999). Adaptive drill system: A neural network approach. Paper submitted to the Proceedings of the National Science Council, Part D.(Coauthor: Wang, Hsu-Yie). 何荣桂(1999)。适性测验题库之品质管理策略。国家科学委员会研究汇刊：人文与社会科学，9卷，4期，页630-652。(共同作者：陈丽如
