lower bituminous coal
常见例句
- The results show that at lower burn-off, the high content of Datong bituminous coal is favorable for preparing activated carbons with high iodine value and methylene blue value.
试验结果表明，大同烟煤配比较高时，有利于在低烧失率下制备高碘值、高亚甲蓝值的活性炭； 返回 lower bituminous coal