<正> Three fresh China coals(lignitie,bituminite and anthracite) from different geo-logical origin and the corresponding fly and bottom ashes were studied by ro
<正> MRCR could be regarded as a multi-stage compounding real option,based on option theory,assuming the convenience yield of coal reserves to be constant,built
On the basis of ANSYS finite element model(FEM) software, the deep-level rockburst in Fuxin coalfield was simulated numerically. Based on Haizhou Mine and Wulon