短语词组短语bituminite e 烟煤bituminite pneumoconsis 油页岩尘肺bituminite pneumoconiosis 油页岩尘肺solid bituminite 固体沥青质bituminite ratio 烟煤配比pure bituminite 全烟煤meta -bituminite 高煤化沥青体low rank bituminite coal 低变质烟煤 返回 bituminite