宝格先生和麦基尔是正确的，他们宣称如果过多华而不实的因素被加在指数基金上的话，它低成本的吸引力将被减弱。

And Messrs Bogle and Malkiel are right to argue that the low-cost appeal of index funds will be diluted if too many bells and whistles are added.

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应力指数法和疲劳强度减弱系数法是进行疲劳容器设计的重要方法。

Stress index method and fatigue strength weakened coefficient method are important methods for designing fatigue vessel.

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