• 操练球队

Drillat德里亚drilln.钻孔机；钻子；反复操练；播种机v.练习；钻孔；(军事)训练drilled core method钻芯法drilling pump valve钻井泵阀drill stem elements钻具Drill down operator下钻操作drill-ground bomb钻地炸弹drilling operations演习drillhole curvature钻孔弯曲度drill-stem tester钻杆测试器drill stem clamping钻杆夹持drilling waste slag钻孔废渣

1. The drilling team is working on a petroleum associated gas well to exploit natural gas.
   钻探队正在打油气井，准备开采天然气。