求翻译：定期进行市场调查、对符合条件的供应商进行层层筛选，最后确定出可以合作的供应商名单。对合格的供应商进行分类归档处理，及时监督供应商的各项工作完成情况是什么意思？

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Regularly conduct market surveys, in qualified suppliers at each and every level, the finalization of the cooperation can list of vendors. To qualified vendors to classify archive processing, timely monitor vendor on the completion of work of the

Carries on the market survey, to conforms to the condition supplier to carry on layer upon layer screens regularly, finally determined may cooperate supplier name list.Carries on classified filing-up processing to the qualified supplier, promptly supervises supplier's each completion of work situati

Regular market surveys, layers of screening for eligible suppliers to finalize a list of vendor cooperation. On the qualified supplier file processing, supervise the work completed in a timely manner

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