易磨性试验存在一个适宜的细度范围，偏离这一范围就有可能导致粉磨功的大量消耗。

The grindability test has a moderate range of degree of fineness and departure from the range would result in excessive consumption of grinding work.

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本文结合黑龙江省科技厅的攻关项目，建立球磨法制备超细石英粉体的工艺参数模型并进行优化。

This article is based on the item of science and technology office of heilongjiang province, and a process parameters model is built and optimized.

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研究结果表明：多元醇类助磨剂和多元醇胺类助磨剂，都能显著提高水泥粉体的细度；

The results indicate that both kinds of grinding aids increase the powder fineness and the Blain's values considerably.

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