名词 drilling:

1. the act of drilling

2. the act of drilling a hole in the earth in the hope of producing petroleum

drillern.钻孔机；钻床；钻探工drilln.钻孔机；钻子；反复操练；播种机v.练习；钻孔；(军事)训练drill for oil钻探石油drill process制孔工艺drilling core钻探岩芯drilling rigs钻井平台drill adapter钻杆卡头,夹钎器drilling right采掘权; 开采权drilling piles钻孔桩drilling fluid钻探泥浆drilling stand钻床柱drilling barge钻探船