The blasting parameters, circuit, etc. of vibration shot uncoveringcoal, are designed and constructed and coal seam is uncovered safely and successfully.
对震动放炮揭煤的爆破参数、起爆网络等进行了精心设计与施工,安全顺利地揭开了煤层。
2
Optimizing the Construction Organization Planning, Decreasing the Tunes of UncoveringCoalSeam, Shortening the Period of Mine Construction.