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- Keywords CJF 20 percussion drill rig with reverse circulation;percussion with reverse circulation;impacting breaking rock;drilling parameter; 关键词CJF-20冲击反循环钻机;冲击反循环;冲击碎岩;钻进参数;
- GCF-20A Reverse Circulation Percussive Drilling Rig GCF-20A型冲击-回转反循环工程钻机
- percussion drilling rig 顿钻机
- Diamond drilling replaced percussion drilling. 金钻探取代了冲击钻探。
- 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。
- Development of GCF Series of Reverse Circulation Construction Percussive Drill Rig GCF系列冲击反循环工程钻机的研制
- 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。
- 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。
- 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。
- Disc brake system on drilling rigs. 石油钻机盘式刹车制动系统。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。