Meanwhile, it is obtained the combined model of mid-long term load forecast based on the 1-order and 2-order improved forecast effectiveness optimumprinciple.
给出了基于一阶和二阶改进预测有效度最优级原则的中长期负荷组合预测模型。
2
The optimumprinciple is reasonable and feasible in a particular controlled systematic engineering, but it is not necessarily so when it goes beyond a certain scope.
最佳原则在特定的系统工程控制中是合理和可行的，但超出特定的范围，就不一定合理和可行。
3
Using modularity design method, a process of designing a kind of centrifugal pump is discussed. Based on functional analysis, a scheme of optimumprinciple is determined.