平朔安家岭二号井工矿工业广场矿渣自燃灭火治理技术与实践
평삭안가령이호정공광공업엄장광사자연멸화치리기술여실천
Technology and practice of fire extinguishing to the mineral slag spontaneous combustion at well Ⅱ industral Plaza in Pingshuo Anjialing coal mine