Based on correlation coefficients and principal component analysis, fe and al were selected as the concentration normalizer for the different trace metals.
由相关系数和主成份分析，选择铁和铝作为沉积物中痕量金属浓度的均一化元素。
Based on correlation coefficients and principal component analysis, fe and al were selected as the concentration normalizer for the different trace metals.
由相关系数和主成份分析，选择铁和铝作为沉积物中痕量金属浓度的均一化元素。
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