That long-run average offers a better guide to the future.
长期平均值更好地为未来指明方向。
Switzerland's ratio is also less than its long-run average.
瑞士比率也低于长期平均水平。
Meanwhile, the expression of the long-run average benefit per unit time is derived.
导出了系统经长期运行单位时间内期望效益的明显表达式。
Meanwhile, the expression of the long-run average benefit per unit time is derived.
导出了系统经长期运行单位时间内期望效益的明显表达式。
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