bituminite
短語(yǔ)詞組
- bituminite e 煙煤
- bituminite pneumoconsis 油頁(yè)巖塵肺
- bituminite pneumoconiosis 油頁(yè)巖塵肺
- solid bituminite 固體瀝青質(zhì)
- bituminite ratio 煙煤配比
- pure bituminite 全煙煤
- meta -bituminite 高煤化瀝青體
- low rank bituminite coal 低變質(zhì)煙煤 返回 bituminite