It was found that different reaction sites on catalyst possessed different catalytic activity among which those edge reaction sites possessed higher activity.

结果表明，催化剂不同反应位上的催化活性不同，边位的催化活性较高。

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Companies with adequate SCM will be granted with the edge on minimal stockpile, quick turnover, low cost and better reaction to market change.

完善的供应链可以帮助企业实现小库存、快流转和低成本的目标，提高企业对市场的反应水平。

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