It appears to be more effective to concentrate efforts on further reducing the costs of handling non-cached chunks than to rely on policies and heuristics that are of decreasing utility.

似乎把精力集中于进一步减少处理非高速缓冲块的开销会更有效，而不是依赖于进行减少的策略和尝试。

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According to characteristics of the decreasing absolute risk averter's utility functions, the paper analyzes and proves its decision rules, gives the theorem 4 and theorem 5.

在此基础上，根据递减绝对风险规避者的效用函数集合的特征，分析并证明其决策准则，给出定理4、定理5。

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This Law states that WTH every increase in consumption of a unit, your utility (satisfaction) will reach a point where it will increase at a decreasing rate and eventually start to decline.

这就是边际效益法则，它说明了每个人对消费一样东西的时候，它所带给个人的情况(满足感)。当它达到最高点的时候，接下来就会开始往下降。

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