On the basis of state estimation based on PMU in possession, a new model of state estimation is presented in this paper.
在现有基于PMU的状态估计模型的基础上，提出了新的基于PMU的状态估计模型。
The utility model does not increase the possession area of the computer room, thus it can save land occupation greatly.
本实用新型完全不用考虑增加机房占有的面积，极大地节省了占地。
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