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酒钢镜铁山矿运用硐室大爆破处理山头岩体，以便为２号（中）矿体的开采形成良好的覆盖层。由于爆破设计合理，工程质量较好，达到了预期的目的。
Jiuquan Steel Tieshan Iron and its use of large blasting of rock chamber to deal with the No. 2 (middle) ore body to form a good cover. Due to the design of blasting is reasonable, the quality of the project is better and the expected purpose is achieved.