静音膨胀剂操作指导
形状规则物体的破碎 Cutting objects of regular shape |
地表地面的挖掘 Digging the ground |
桥墩桥台的破碎 Breaking bridge piers and abutments |
原石开采 Mining rough stone |
壕沟渠道的开挖 Excavating entrenchment |
隧道挖掘或钻井 Digging tunnels or boreholes |
静音膨胀剂操作指导
形状规则物体的破碎 Cutting objects of regular shape |
地表地面的挖掘 Digging the ground |
桥墩桥台的破碎 Breaking bridge piers and abutments |
原石开采 Mining rough stone |
壕沟渠道的开挖 Excavating entrenchment |
隧道挖掘或钻井 Digging tunnels or boreholes |
