high bituminous coal
短语词组
- high sulfur bituminous coal 高硫菸煤
- high volatile bituminous coal 高揮發性瀝青煤;氣煤;焰煤;長焰煤
- high rank bituminous coal 高級菸煤
- high volatile bituminous coal a 氣煤
- high volatile bituminous coal c 焰煤
- high volatile bituminous coal b 長焰煤;長焰炭
- high -volatile A bituminous coal 高揮份A級菸煤 返回 high bituminous coal