目录第一节 煤炭介绍...............................................................................................................21、形成过程....................................................................................................................32、成分............................................................................................................................43、伴生元素....................................................................................................................44、分类............................................................................................................................55、用途............................................................................................................................66、采矿方法....................................................................................................................77、储藏量........................................................................................................................78、生态破坏....................................................................................................................79、中国的煤炭资源........................................................................................................810、政策调整................................................................................................................10第二节煤的形成阶段.......................................................................................................11第三节煤炭的种类及用途...............................................................................................161、煤炭的分类：..........................................................................................................162、煤炭的用途：..........................................................................................................19第四节 煤炭分类指标..........................................................................
