Drill rod and collar are key apparatus in drillingexploration and well drilling industry.
钻杆和钻铤等管状螺纹联接件是钻探和石油钻井工业中的关键设备。
2
The author expects that the interpreting method is helpful to the area′ drillingexploration break through and similar area exploration.
希望这种解释法有助于该区钻探取得突破且有助于类似区域的勘探。
3
The engineering geological drillingexploration for the Jinduicheng tailings dam area is carried out to serve the heightening design of enlarging its volume.