<正> According to fluid dynamics analysis during the fire, the criteria k-ε two-equationmodel for solving three-dimensional turbulence was determined, the poll
<正> Through analyzing experimental data of gas explosions in excavation roadwaysand the forecast models of the literature, Found that there is no direct propor
<正> Maceral composition and aromatic compounds were determined on columnsamples to study the peat-forming environments of Permian coal seam 2 and Carboniferous