The sales, maintenance and service of rotary drilling rig drill rod;
旋挖钻机钻杆的销售、维修、服务；
They are different from that of conventional rotary drilling equipment.
这些设备与常用的钻进法设备不同。
Because it is in mass production, using a rotary drilling fixture, improved production efficiency.
由于是中批量生产，采用了回转式钻床夹具，提高了生产效率。
Based on the principle of conversation of energy, the energy for rotary drilling has been analyzed.
旋转钻进是岩土工程钻探的主要钻进方式，从能量守恒原理出发，对旋转钻进的能量进行分析。
Based on the principle of conversation of energy, the energy for rotary drilling has been analyzed.
旋转钻进是岩上工程钻探的主要钻进方式，从能量守恒原理出发，对旋转钻进的能量进行分析。
The rotary drill stem will engender direction drift in rotary drilling of directional well and cluster well.
在定向井及丛式井的转盘钻进中，旋转钻柱会产生方位漂移。
The steer-able rotary drilling system can control the well path timely and accurately, but it is too expensive.
旋转导向工具进行连续导向钻井具有随时可控性，轨迹控制质量高，但使用成本很高。
The method of rotary drilling hole and protecting hole wall by static mud is an advanced technique to drill hole.
静态泥浆护壁旋挖成孔工艺是一项先进的成孔工艺。
The rotary drilling rig excavation in Yingbin Road station means the start of the station enclosure construction.
迎宾路站旋挖钻机开挖，意味着该站围护施工的开始。
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。
Rotary drilling rig is used in bored pile construction of No. 1 and No. 2 Yongning River Bridge in Hefei-Nanjing Railway.
合宁铁路永宁河1、2号特大桥钻孔灌注桩基础采用旋挖钻机施工。
There are several other kinds of rotary drilling equipment using the rotary principle in the construction of vertical shafts.
在建设竖井中，有一些其它种类的利用旋转原理的钻进法设备。
MAIT is the first company to research and manufacture the rotary drilling RIGS and related foundation equipment in the world, Mr.
是世界上最早开始进行旋挖钻机以及相关基础施工设备研发的公司。
Evaluation of the service life of a rotary drilling line is of great importance to ensuring safe drilling and reducing drilling cost.
钢丝绳使用寿命评定对确保钻井安全与降低钻井成本具有十分重要的意义。
The percussion-rotary drilling technique is one of the most effective drilling methods. It has made a great progress in recent years.
冲击旋转钻进技术是一种高效的碎岩方法，近年来随着施工领域的拓宽取得了很大的进步。
The pneumatic percussion rotary drilling is mainly operated in the area where liquid is hardly or not permitted to be used as the circular medium.
气动冲击回转钻进主要应用于难用或忌用液体作为循环介质的地区。
Pangolin provide customers with a variety of rotary drilling accessories, including bucket teeth, tooth Block, the center point, to mention inducer.
我公司为广大用户提供各种旋挖配件，包括各种斗齿、截齿、齿座、中心尖、提引器等。
Based on the historical experience of drilling technology, it is proposed to study the bottom process of large diameter reverse circulation rotary drilling.
根据钻探技术的历史经验，建议应进行大直径反循环回转钻进井底过程的研究。
The percussion and rotary drilling of hydraulic impactor may heighten drilling velocity several times, when it is been applying in drilling geothermic well.
液动冲击器冲击回转钻进技术应用于地热井钻进中，可以数倍提高钻进速度。
Mechanical rock breaking is the main function of modern rotary drilling. The purpose of jet aided mechanical rock breaking is to improve the penetration rate.
现代旋转钻井破碎岩石是以机械破岩为主导方式，射流辅助机械破岩的目的是提高机械钻速。
The utility model discloses an adjustable display support and relates to the adjustable display support which is used in a driving cab of a rotary drilling rig.
本实用新型可调显示器支架涉及一种用于旋挖钻机驾驶室内的可调显示器支架。
This paper describes how the rotary drilling stem lost its stability in detail, and presents the main factors influencing drill stem stability in rotary condition.
系统地进行了斜直井中旋转状态下钻柱稳定性的试验研究，描述了旋转钻柱失稳的过程，分析了旋转状态下影响钻柱稳定性的主要因素。
Due to the rotary drilling rig characteristics of high efficiency, less pollution, more functional, it has been widely applied in the pile foundation construction.
旋挖钻机因其效率高、污染少、功能多的特点，在桩基施工中得到了广泛应用。
GCF-20A reverse circulation percussive rotary drill rig is a multi function drill rig with percussive drilling as the main means and rotary drilling as supplemented.
GCF -2 0a型冲击-回转反循环工程钻机是以冲击钻进为主、回转钻进为辅的多功能钻机，可适应软、硬岩石等不同地层钻进的要求。
GCF-20A reverse circulation percussive rotary drill rig is a multi function drill rig with percussive drilling as the main means and rotary drilling as supplemented.
0a型冲击-回转反循环工程钻机是以冲击钻进为主、回转钻进为辅的多功能钻机，可适应软、硬岩石等不同地层钻进的要求。
The paper introduced the use of airlifting reverse circulation rotary drilling techniques in practice of major diameter socket pile operation at Xiangfan city's Hanjiang No.
介绍了使用泥浆护壁气举反循环回转钻进工艺进行襄樊汉江四桥大口径嵌岩桩的施工实践。
Rotary drilling is a dominant way in geotechnical engineering borehole surveying. Based on the principle of conversation of energy, the energy for rotary drilling has been analyzed.
旋转钻进是岩上工程钻探的主要钻进方式，从能量守恒原理出发，对旋转钻进的能量进行分析。
The paper introduced the use of airlifting reverse circulation rotary drilling techniques in practice of major diameter socket pile operation at Xiangfan city's Hanjiang No. 4 bridge site.
介绍了使用泥浆护壁气举反循环回转钻进工艺进行襄樊汉江四桥大口径嵌岩桩的施工实践。
The percussive - rotary drilling technology is one of the most effective ways to solve the drilling difficulties in hard rock in recent years. The technology has a good application prospect.
旋冲钻井技术近年来已成为石油钻井界广泛关注的热点研究课题，被认为是解决深井硬地层钻进难题的最有效方法之一，具有良好的应用前景。
Study on the percussive rotary drilling law under various temperatures is of great significance because it can provide a theoretical basis for new drilling process designed for geothermal production.
研究不同温度条件下冲击回转凿岩规律具有重要意义，可以为设计地热开采的新型钻探方法提供理论依据。
应用推荐