Fermentation is often one step in a sequence of food processing operations, which may include cleaning, size reduction, soaking, and cooking.

发酵过程通常是一系列食品加工操作中的一道工序，这些加工过程可包括清洗，粉碎，浸泡和烹饪等步骤。

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Attribute reduction is one of important step in preprocessing of data mining, it improves the efficiency of the data mining algorithm by reducing the dimensions of the information.

属性约简是数据挖掘预处理中非常重要的一步，它通过减少信息的维数提高数据挖掘算法的效率。

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The reduction reaction occurs in one step.

还原反应为一步完成的。

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