求翻译：本文根据“二八理论”，通过商品的种类所占百分比和年平均销售金额所占百分比两个指标对供应商进行了科学的分类，并对“南京视客”供应商的评价与选择提出了优化。是什么意思？

Based on the 28 theory, two indicators of the type of goods percentage and average annual sales amount of the percentage of the suppliers of scientific classification, and Nanjing, as the customer, supplier evaluation and selection of optimized .

This article based on the "theory" with 28 OF THE 100 and the average annual sales amount of more than 100 indicators in the two vendors for the scientific classification, and the "Nanjing" depending on the supplier evaluation and selection of the optimization.

This article according to “28 theories”, accounted for the percentage and the annual mean sale amount through the commodity type occupies the percentage two targets to carry on the science classification to the supplier, and “regarded the guest to Nanjing” supplier's appraisal and the choice propose

According to this article "theory of 28", by commodity type percentage and average annual sales amount of the percentage of two indices on the scientific classification of vendors, and the "Nanjing" vendor evaluation and selection made the optimizations.

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