Numerical results show that the emergency item supply policy with transshipment can significantly reduce the syst...

结果表明，允许转运的应急调货策略可以显著降低系统总成本。

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Numerical results show that the emergency item supply policy with transshipment can significantly reduce the system total cost.

结果表明，允许转运的应急调货策略可以显著降低系统总成本。

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The first step to ensuring the safety of your food supply is keeping track of when you purchased and opened each item.

第一步，为确保安全，当您购买和和打开每个食品前，应对您的粮食供应是保持跟踪。

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Let's go back to Econ 101: When you constrict the supply of an item and have constant or increasing demand, price must increase.

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Or the toothpaste, medical supply or pawned item for that matter.

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Developed by Hannes Harms, a design engineering student at the Royal College of Art in London, these little markers would allow consumers to trace the entire supply chain behind every item in their cupboard, while feeding valuable nutritional information to dieters or people with particularly dangerous food allergies.

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