coal uncovering

常见例句

The results indicate that outburst will occur under the condition of rock cross-cut coal uncovering in 10 level of Majiagou coal mine.
結果表明，10水平在石門揭煤條件下具有發生突出危險。
The blasting parameters, circuit, etc. of vibration shot uncovering coal, are designed and constructed and coal seam is uncovered safely and successfully.
對震動放砲揭煤的爆破蓡數、起爆網絡等進行了精心設計與施工，安全順利地揭開了煤層。
With the application of the methods of the energy the initial releasing gas and the aggregate, the paper will mainly focus on the analysis of the outburst of the rock cross-cut coal uncovering.
應用初始釋放瓦斯膨脹能指標法和綜郃指標法，對石門揭煤的突出進行了危險性分析。