Besides, temperature dynamic profiles and the influences of different operation conditions on optimum cycle time and refrigeration power have been analyzed at all stages of one optimum cycle time.
此外，还考察系统在一个最优循环周期各个阶段的温度动态以及不同操作条件对最优循环时间和最优制冷功率的影响。
In this paper, the method of annually costs is used to found the collective optimization model including gas transportation pipeline optimum design and compressor station optimum operation.
本文采用年值法建立了包含输气干线优化设计和压缩机站优化运行的综合优化模型，这两个模型分别属于混合离散优化和组合优化。
The key to the optimization of reactive power operation is to get optimum value or satisfying quasi optimum value.
无功运行优化问题的关键在于获得最优解或较好的次优解。
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