Drillet德里耶
drilln.钻孔机;钻子;反复操练;播种机v.练习;钻孔;(军事)训练
drill shaft pile钻孔灌注桩
drill pipe gauge钻杆螺纹规
drill pcint gage钻头角度规
drillhole burden炮眼的负裁
drill hole depth钻孔深度
drilling process钻孔工艺
drill water pipe钻机冲洗水管
drill cove store岩心库
Drill Hole Strain
drilling platform钻探平台