By using numerical solution method, the optimal cycle performance characteristics of the engine at maximum power output, maximum efficiency and maximum ecological function are analyzed and discussed.

应用数值方法，分析并讨论了热机在最大输出功率、最大效率和最大生态学函数下的优化循环性能特性。

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It is one of the most important decision-making activities that how to decide the maintenance cycle, the number of maintenances and the optimal life cycle.

如何确定装备系统的维修周期、维修次数及最优经济寿命周期，成为企业最重要的决策活动之一。

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According to stockpile condition, fixed number of year and possibility of failure of missile weapon, the nature and quantitative analysis is made to determine optimal test cycle of missile.

根据导弹武器贮存条件、年限和故障率，进行定性和定量分析确定武器最佳检测周期。

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Rather than explaining the cycle in terms of market failure, as Keynes did, real business-cycle theory views a recession as the optimal response by households and firms to a shift in productivity.

ECONOMIST: The causes of booms and busts