粗细

Numerous goblet cells containing abundant mucigen granules interspersed among the columnar cells.

大肠黏膜皮排列松散，全部由下粗不均的柱组成。

Finally,the most reasonable technological process of“stagewise grinding,coarse and fine classification,gravity separation magnetic separation reverse anionic flotation”has been found out.

最终推荐“阶段磨矿、粗分级、重-磁-离子反浮选”为选矿合理工艺流程。