diving drill machine 潜水钻机
The machine equipments needed has spiral drill press and drill to expand machine or diving drill press.
所需机械设备有螺旋钻孔机、钻扩机或潜水钻孔机。
Particularly, it is more difficult to use diving drills to perform drill-pouring piles construction on this kind of foundation.
尤其是使用潜水电钻在此类地基上进行钻孔灌注桩施工更是存在较大的困难和较多的难题。
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