Vendors often sell their products to buyers far away. Frequently, a few products in the lot are found to be imperfect, but because of the distance to the vendor, it is not cost-effective for the bu...

中文翻译：

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二级供应链模型中带有维修选项的运输政策的研究和比较

供应商经常将他们的产品卖给远方的买家。经常会发现批次中的少数产品不完善，但由于距离供应商较远，对于购买者来说并不划算。