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