短語(yǔ)詞組短語(yǔ)high sulfur bituminous coal 高硫菸煤high volatile bituminous coal 高揮發(fā)性瀝青煤;氣煤;焰煤;長(zhǎng)焰煤high rank bituminous coal 高級(jí)菸煤high volatile bituminous coal a 氣煤high volatile bituminous coal c 焰煤high volatile bituminous coal b 長(zhǎng)焰煤;長(zhǎng)焰炭high -volatile A bituminous coal 高揮份A級(jí)菸煤 返回 high bituminous coal