coal uncovering

常見例句

The results indicate that outburst will occur under the condition of rock cross-cut coal uncovering in 10 level of Majiagou coal mine.
結(jié)果表明，10水平在石門揭煤條件下具有發(fā)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.
對震動放炮揭煤的爆破參數(shù)、起爆網(wǎng)絡(luò)等進(jìn)行了精心設(shè)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(yīng)用初始釋放瓦斯膨脹能指標(biāo)法和綜合指標(biāo)法，對石門揭煤的突出進(jìn)行了危險性分析。