classification of coal造句

例句与造句

1. Solid mineral fuels . classification of coals for the coking
   固体矿物燃料.炼焦用煤的分类
2. Standard classification of coals by rank
   煤分级的标准分类
3. Classification of coal mine water
   煤矿矿井水分类
4. Classification of coal
   煤的分类法
5. Classification of coals
   煤的分类
6. It's difficult to find classification of coal in a sentence. 用classification of coal造句挺难的
7. The regularity is obvious about the correspondence between mean maximum reflectance of vitrinite and classification of coals
   但总的来说，烟煤镜质组反射率与煤种之间的关系规律性明显。