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
drilling hydraulics钻探水力学
drilling technology钻井工艺
drilling enterprise钻井企业
drilling simulation钻井仿真
drilling for points钻孔投点
drill blasting plan钻爆方案
drilled oil passage钻孔油道
drilling pump liner钻井泵缸套
drill press spindle钻床主轴
drill fertilization条施