所需机械设备有螺旋钻孔机、钻扩机或潜水钻孔机。

The machine equipments needed has spiral drill press and drill to expand machine or diving drill press.

youdao

所需机械设备有螺旋钻孔机、钻扩机或潜水钻孔机。

The machine equipments needed has spiral drill press and drill to expand machine or diving drill press.

youdao