球磨机按用途分类：原料磨、湿法原料磨、水泥磨、煤磨；
The ball mill is classified by use: Raw materials mill , raw materials mill with process, cement mill , coal mill;
在交通调查中，可利用模糊聚类分析将交通分区按工业、居住、公建、道路绿化广场等各项用途来进行分类。
In traffic investigation, traffic sub-areas are classified by fuzzy cluster analysis through such USES as industry, residence, construction and road green plaza.
本标准一般不按钢产品的最终用途和生产工艺进行分类，有时只作为分类的参考。
Generally, this standard is not classified according to ultimate application and production processes, sometimes, it only used for references.
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