What Amazon needs next is a steeply rising sales curve for the Kindle Fire, which could provide the necessary scale to challenge Apple.

亚马逊接下来需要的乃是Kindle Fire的市场大卖，这将为挑战苹果提供必要的规模效应。

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By way of mathematic analysis and extremum method, and the curves expressing the functions of sales price curve and the sales volume are determined reasonabl.

本文针对攀钢钢铁产品销售价格的组成，进行了理论分析和研究。

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Mr. Ullman feels that the Internet is a great opportunity for the company to strengthen the sales curve and will no doubt put significant emphasis on getting an omnichannel strategy moving forward.

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Blackberry Curve sales have started flagging due to the obsolete technology of the device.

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These transactions are posted on a bell curve, displaying the percentage of sales in four price ranges: below market, great, good, and above market.

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