粗煤 meaning in Chinese

coarse coal
corase coal

Improvement on coarse slime system in taiyuan preparation plant
太原选煤厂粗煤泥系统的技术改造
Analysis for technique of coarse slime system in taiyuan warshery
太原选煤厂粗煤泥系统技术分析
Conversion of coarse slime recovery circuit at wangfenggang coal preparation plant
望峰岗选煤厂粗煤泥回收系统的改造
Technical rebuilding of coarse slime recovery system in taixi coal preparation plant
太西选煤厂粗煤泥回收系统的技术改造
Discussion on technical renovation of coarse coal slime treatment system of taiyuan coal preparation plant
浅谈太原选煤厂粗煤泥系统的技术改造