靜音膨脹劑操作指導
形狀規則物體的破碎 Cutting objects of regular shape | 地表地面的挖掘 Digging the ground | 橋墩橋臺的破碎 Breaking bridge piers and abutments |
原石開(kāi)采 Mining rough stone | 壕溝渠道的開(kāi)挖 Excavating entrenchment | 隧道挖掘或鉆井 Digging tunnels or boreholes |
靜音膨脹劑操作指導
形狀規則物體的破碎 Cutting objects of regular shape | 地表地面的挖掘 Digging the ground | 橋墩橋臺的破碎 Breaking bridge piers and abutments |
原石開(kāi)采 Mining rough stone | 壕溝渠道的開(kāi)挖 Excavating entrenchment | 隧道挖掘或鉆井 Digging tunnels or boreholes |