您要查找的是不是：
- blast hole drilling rig 炮孔钻机
- Testing and Research on Seismic Hole Drilling Rig with Air-flushing 地震空气钻机钻井工况实验研究
- Testing of the Air Reverse Circulation Drilling Process in Geo-physical Blast hole Drilling 空气反循环钻进工艺在物探爆破孔施工中的试验应用研究
- Research on and Development in the Geo-physical Blast Hole Drill and Its Accessory Tools in Mountainous and Hilly Area 山地丘陵地区物探爆破孔钻机及配套机具的研究与开发
- The automatic hoist device of cable of blast hole drills 牙轮钻机电缆自动卷扬装置
- underground blast hole drilling 井下炮眼钻凿
- blast hole drill 凿岩机
- 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。
- WISDOM DEEP HOLE DRILLING MACHINE CO., LTD. 慧能深孔机械有限公司。
- 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。
- Dual action: hammer drilling and hole drilling. 二模式动作:锤钻及单钻孔。
- DEEP HOLE DRILLING TECHNOLOGY LTD. 北京哈镘深孔技术有限公司。
- 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。
- Now this technique is applied in the slim hole drilling in Daqing Oil Field. 目前，此项技术已在大庆油田小井眼钻井中推广应用。
- The form and devel-opment of the blast hole cracking is t he main reason which leads to the effe ctive crush. 不同炮孔周围裂纹的适量产生与发展,是引起岩石有效破碎的真正原因。
- 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。
- At the Garson Mine in the Sudbury basin, an instrumented test opening has been mined under a paste backfil1ed blast hole stope. 而在萨德伯里盆地的加森矿，已在采用深孔崩矿的膏体充填体下进行试采。
