drill up向上挖掘
drilln.钻孔机;钻子;反复操练;播种机v.练习;钻孔;(军事)训练
drill-string tripping钻具组升降程序
drill-steel sharpener钻头磨锐机
drilling pipe upsetting钻杆镦粗
drilling tool structure钻具结构
Drill holes for filling充填钻孔
drilled footage per day台日进尺
drilling perfusion pile钻孔灌注桩
drilling occlusive pile钻孔咬合桩
drilling hole pour pile钻孔灌注桩
drill sharpening machine钻头刃磨床