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- Pneumatic hammer drilling technology with low wob,low rate of revolution and high capacity to break rock is one of the best effective methods to solve the problems of hard rock drilling. 空气锤钻井是一种低钻压、低转速、高冲击破岩回转钻进技术,它兼容了气体钻井和冲击回转钻井的优势,其机械钻速一般比回转钻井高,是当今解决硬岩钻井难题的一种有效方法。
- hard rock drilling technology 硬岩钻进技术
- Inserted diamond bit applied to hard rock drilling in Xinji Mining Area 孕镶金刚石钻头在新集矿区坚硬岩层钻进中的应用
- Lately they have been getting into hard rock. 近来他们一直热衷于演奏硬派摇滚。
- Application of Rotary Rig in Hard Rock Drilling for Foundation Project of One Power Station 旋挖钻机在某电厂桩基工程硬岩地层中的应用
- The Application of the Hard Rock Drilling Technique with Large Diameter in Chinese Continental Scientific Drilling Engineering 大口径硬岩钻探技术在中国大陆科学钻探工程中的应用
- DEEP HOLE DRILLING TECHNOLOGY LTD. 北京哈镘深孔技术有限公司。
- Under the crust are many layers of hard rock. 在地壳的下面是许许多多坚硬的岩石层。
- 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。
- Hard rock is the real cultural revolution. 摇滚是一场真正的文化大革命。
- Features: rock drilling for opencast mining and quarrying field. 适用于露天矿、采石场开采,用于高低风压潜孔钻机。
- But the underbalance drilling technology on diesel tail gas i... 但该技术不适应产水气井,也不适于高压气井。
- Lately they have is get into hard rock. 近来他们一直热衷于演奏硬派摇滚。
- Lately they've been getting into hard rock. 近来他们一直热衷于演奏硬派摇滚。
- Mini rock drill has been produced based on patented technology for rock drill warm extrusion. 采用钎头壳体温挤压精密成形专利技术生产了小型凿岩钎头。
- Tina: What about hard rock songs? 蒂娜:那么摇滚乐歌曲呢?
- You ever heard of a hasidic jew into hard rock? |你听说过哈西德派犹太人从事硬摇滚吗?
- The rock drill is indispensable for digging coal mines. 凿岩机是煤炭采掘不可缺少的工具。
- This drilling fluid meets the requirements of aerated drilling technology. 该钻井液可满足充气工艺要求。 此外,该钻井液密度连续可调。
- She made herself as comfortable as the hard rock permitted. 她在坚硬的岩石上尽可能坐得舒服些。