coalingn.装煤coaln.煤；木炭vt.烧成炭；供应煤vi.加煤；装煤coal gangue cement掺煤矸石水泥coalescent grooves融沟型(食管癌)coal-mining city煤炭城市coal mining spoils煤矸石coal pillar thrust煤柱压碎coal-bed methane煤层气coal gas explosion瓦斯爆炸coals to Newcastle多余的东西coal measures unit煤系旋回coal and rock mass煤岩体