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- The experience in the use of three types of deep drilling rigs, DHD and rotary, in VCR stopes of Fankou Pb/Zn mine was introduced. The ways how to control the hole deviation and how to increase the drilling efficiency were discussed in more detail. 介绍了凡口铅锌矿VCR采场应用三种型号潜孔钻机和牙轮钻机深孔凿岩的经验，对如何控制钻孔偏斜、提高凿岩效率作了详细论述。
- deep drilling rig 深井钻机
- AC-SCR-DC mode is the best driving mode for a drilling rig. DC驱动方式是目前钻机最好的驱动传动方式。
- MAN300 drilling rig is working in gravel area in West Luntai, Sinkiang. 300型钻机在新疆轮台西砾石区进行地震钻井施工。
- YG-30 drilling rig is a full hydraulic operated top drive power head drill. 型工程钻机为全液压驱动动力头式钻机。
- Some remarks on developing technique of drilling rig disc brake in China. 关于发展我国钻机盘式刹车技术的几点认识。
- Deep drilling poses particular problems of high pressure and temperature. 深海钻探带来高压力和温度的特殊问题。
- If it is thoughtthat the rocks in a certain area contain oil, a "drilling rig"is assembled. 如果认为某地区的岩层含石油,则在该处安装“钻机”。
- Large degree of freedom of drilling frame structure can enlarger efficiently operation scope of drill rig. 多自由度钻架结构，有效地扩展了钻机的作业范围。
- With expert chassis of Rotary drilling rig and strong box type mast, it has high working stability. 应用徐工成熟技术制造的旋挖钻机底盘，结实的箱型臂架，具有超强稳定性；
- Both jackup drilling rig and bucket foundation platform belong to shallow foundation structures. 自升式钻井船和筒型基础平台都属于浅基础结构物。
- A kind of hydraulics system for CKS-I hydraulic gas drainage drilling rig was designed. 介绍了一种自主设计的CKS-I型全液压瓦斯抽排放钻机的液压系统。
- Formate brines are especially fit for deep drilling and the environmentally sensitive areas. 特别适合于深井、不稳定泥页岩层及环境敏感地区的鉆井和完井。
- Disc brake system on drilling rigs. 石油钻机盘式刹车制动系统。
- Drilling rig efficiency unit per month (DREupm) is a key indicator to display drilling productivity. 摘要钻探台月效率是考核钻探施工生产水平的主要指标。
- My particular experience is largely in oil, and the search for oil has done more to improve deep drilling than any other mining activity. 我个人的经历主要是从事石油行业,寻找石油相对于其他任何采矿行业更需要采用深孔钻探技术。
- Everything on a drilling rig directly or indirectly assists the bit in crushing or cutting the rock. 在钻机上的每一种装置都直接或间接地有助于钻头粉碎或切割岩石。
- And it is used successfully in shield tunneling, horizontal drilling, deep drilling, slotted walls and bore piles construction projects. 主要应用于盾构隧道挖掘，水平钻孔，深层钻孔，开凿围墙和钻桩的建筑项目。
- The most obvious part of a drilling rig is called"a derrick". It is used to lift sections of pipe, which are lowered intothe hole made by the drill. 钻机中最显眼的部件叫“井架”,井架用来吊升分节油管,把油管放入由钻头打出的孔中。
- Introduced the technology to control the roof in the gob with man-forced deep drilling and explosion in 14#coal seam as well as to analyze the effect. 介绍14号层人工强制深孔爆破处理采空区顶板的技术以及在实践中得出的经验,并对其效果进行了分析。
