In production process, many complex factors which influence cost affect each other and the coupling phenomenon exists, so it is important and difficult to predict the cost.

在生产过程中，影响产品成本的因素多而复杂，因素之间相互影响，存在耦合现象，因此准确预测成本是一个重要又难以解决的问题。

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But lately,observers say, Prime Minister Erdogan appears to be seeking influence with Arabs at the cost of relations with Israel.

VOA: special.2010.06.05

But the survey found that cost could be a big influence.

VOA: special.2009.09.03

At stake is a decision that could influence the cost of medicines for most Americans because the ruling is expected to determine the pace at which lower-cost generic drugs become available.

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In arguing in support of their merger, executives of Live Nation and Ticketmaster maintained that they have limited influence on the cost of concert tickets, which is ultimately dictated by the financial demands of performers.

WSJ: Promoter Crowds Ticketmaster

Perfect knowledge and significant market influence over their own cost and demand functions.

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