The numerical examples show that, with the application of these global optimization methods, an average-cost problem is the limitation of a discounted problem as the discount factor goes to zero.

数值例子说明，全局优化方法保证了平均准则和折扣准则下的计算结果之间当折扣因子趋近于零时的极限关系成立。

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Recombinant-clotting factor will cost no more than 5 yuan (65 cents) in China, Zhang said. The average international price is 30 yuan.

张说：在中国重组凝血因子花费不会超过5元人民币（65美分）。而国际平均水平则是30元人民币。

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Another key factor in improving investor sentiment is the fact that the recent declines average cost-per-click seem to be slowing, and overall CPC could be stabilizing.

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Of course, if your aim is to dollar-cost average your share purchases over a long period of time, this is not a factor.

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