一些经济学家最近对他们宏观经济预测的可靠性变得非常谦逊。
Some economists are becoming newly humble about the reliability of their macro-economic forecasts.
负荷是电力系统运行和规划的依据，准确的负荷预测有利于提高电力系统运行的经济性和可靠性。
Load is the foundation of power system operation and planning. Accurate load forecasting is advantageous to improving the reliability and economic effect of power system.
负荷是电力系统运行和规划的依据，精确的预测可提高系统运行的可靠性和经济性。
Load is the foundation of the power system operation and planning. The precise load forecasting can improve the reliability and economy of the power system operation.
浆体管道输送系统的可靠性，关系到生产的安全和整个工程的经济效益，设计中预测输送系统的可靠性关系重大。
The reliability of slurry pipeline system is related to the safety of operation and the economic efficiency of system. Therefore, it is significant to predict the reliability of pipeline system.
提出了基于可靠性与经济优化相结合的在役混凝土结构剩余使用寿命的评估准则，并建立了在役混凝土结构剩余使用寿命预测的优化模型。
In this paper, an assessment criterion for remaining service life of existing concrete structures is put forward based on theory of reliability and economic optimization.
提出了基于可靠性与经济优化相结合的在役混凝土结构剩余使用寿命的评估准则，并建立了在役混凝土结构剩余使用寿命预测的优化模型。
In this paper, an assessment criterion for remaining service life of existing concrete structures is put forward based on theory of reliability and economic optimization.
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