slack coal meaning in English
粉煤
粉炭
灰煤
煤粉
碎煤
Examples
- The practice process of the technological parameter of raw coal sizing screen rectified by tianzhuang coal cleaning plant was introduced in this paper , and it also gropes for the traditional size range of lump coal and slack coal
摘要笔者主要介绍了田庄选煤厂调整原煤分级筛工艺参数的实践过程，对传统意义上的块煤和末煤的粒度范围进行了有益的探索。