drill inv.训练(某人)掌握(某种技能;法则等);套管钻进
drilln.钻孔机;钻子;反复操练;播种机v.练习;钻孔;(军事)训练
drilling core samples钻探岩心样品
drill footage per day日进尺
drilling machine tool钻削组机
drill-down operator下钻操作
drilling fluid design钻井液设计
drilling inclinometer钻井测斜仪
drilling on waterways水上钻探
drilling machine vice钻床虎钳
drill tool management钻具管理
drilled affusing pile钻孔灌注桩