1) power drill
动力钻机
3) top drive head rigs
动力头钻机
1.
The main method and content(1) This paper investigates the adaptability of full hydraulic top drive head rigs and spindle drilling rigs in deep mine prospectingDrilling rigs are key equipments in deep mine prospecting.
首先,运用技术经济学原理,创造性地提出钻探经济性指数e概念,对新型动力头钻机和立轴钻机的性能进行研究对比,结合实际得出不同可钻性地层条件下选用动力头钻机的经济性指数,为优化选择钻机提供科学依据。
4) top-drive power head drill
动力头式钻机
1.
This paper introduces different mechanical rod break-out modes,their structures,characteristics and operating programs of top-drive power head drill.
介绍了动力头式钻机的几种机械卸扣方式及其结构特点、操作程序,其中包括先卸钻杆下扣的上扣防松器、活动提篮上扣防松装置以及先卸钻杆上扣的上垫叉座装置。
5) double driving head drilling machine
双动力头钻机
1.
In Huanghe Xiaolangdi water conservancy engineering,pneumatic downhole hammer and double driving head drilling machine were used to solve the problems coming up against with common pneumatic downhole hammer and conventional drilling technology while drilling in slag layer of 50m thickness.
在黄河小浪底水利枢纽观测孔工程中,采用气动潜孔锤跟管钻进结合双动力头钻机成功地解决了普通气动潜孔锤及常规钻进工艺在厚度达50 m渣石层成孔难的问题。
6) downhole motor drill
孔底动力钻机
补充资料：动力头钻机施工边坡加固孔
动力头钻机施工边坡加固孔
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条