提出了一种基于密度的孤立点因子算法和一种基于粗集理论的属性类别差异数据归约算法。
The Out-lier algorithm based on density and attribution classical discrepant data protocol algorithm based on rough set theory were presented.
电流密度：单位电镀面积下所承受的电流，通常电流密度越高膜厚越厚，但是过高时镀层会烧焦粗燥。
Current density: unit under the plating area under current, usually the higher current density film thickness is thicker, but is high coating will scorched thick dry.
茎粗随着种植密度的增大而有减小的趋势。
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