这是一个中性的需求信号。

It is neutral as a demand signal at best.

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这是一个中性的需求信号。

It is neutral for demand at best.

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对牛鞭效应的成因，从需求信号处理、订单批量、价格波动、短缺博弈四个方面进行了分析。

The paper analyzes four sources of the bullwhip effect: demand signal processing, rational game, order batching, and price variations.

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