coal-refuse fire 炉渣发火

coal refuse 煤矸石 ; 煤渣

acid coal refuse 酸性煤矸石

coal refuse piles 煤矸石山

coal refuse foundation 矸石地基

high sulfur coal refuse 高硫煤矸石

firebrick from coal refuse 矸石砖

characteristics of coal refuse 煤矸石特性

coal-refuse fragment dimension 煤矸块度