摘要：概括介绍了最常见的几种粉体粒度的测试方法 ,初步探讨了在超细粉碎过程中的逆研磨问题以及研磨条件 (分散介质、分散剂 )对研磨效率的影响。

关键词：粉体;粒度;逆研磨;研磨平衡;

Abstract：The common methods for measuring particle size are generally introduced in this paper．Тhe “ counter-milling” phenomenon and the influence of milling conditions （dispersing medium，dispersing agent）to the milling efficiency in superfine milling are also studied tentatively． 

Key words：powder；particle size；counter-milling；milling balance