bituminous coal
短语词组
- bituminous soft coal act 烟煤法
- bituminous brown coal 沥青质褐煤;沥青煤
- bituminous lump coal 烟煤块
- bituminous s coal 烟煤;沥青煤
- low volatile bituminous coal 低挥发分烟煤;低挥发蒸汽煤
- high bituminous coal 高烟煤;高沥青煤
- lower bituminous coal 低沥青煤;低烟煤
- bituminous coal fines 烟煤细粉 返回 bituminous coal