coal powder granularity

• 煤粉细度

coal powder granularity的用法和样例：

例句

1. The results of study have certain reference significance for determining optimal coal fineness required for re-burning.
   研究结果对确定再燃所需要的最佳煤粉细度具有一定参考意义。
2. The impact on the pozzolanic effect by the fineness of superfine slag powder is changed with content.
   掺量不同，火山灰效应受矿渣微粉细度的影响也不同。