There are some additional tips for file size reduction here.

这里还有一些额外的缩减文件大小的提示。

Size reduction is helpful for improving the activity of fly ash.

超细粉磨可提高粉煤灰的活性。

The size reduction process of fly ash with grinding aids has been studied.

研究了助磨剂作用下粉煤灰的微细化过程。

The size reduction process of rotary kiln clinker with grinding aids was studied.

研究了助磨剂作用下旋窑熟料的微细化过程。

As the grinding time is prolonged, the rate of size reduction decreases gradually.

但随着球磨时间的延长，颗粒粒径的减小速率会逐渐降低。