Sims says measurements of the grade, mineral matrix, and size of the ore deposit appear favorable to commercial extraction.
希姆斯说对矿品位、矿母及矿床大小的测量对商业提取显得十分有益。
At last, it studies the rule extraction based on feature matrix.
最后，研究了基于特征矩阵的规则提取方法。
Matrix computations for rules extraction are presented.
研究了规则提取的矩阵算法。
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