Finally the paper discussed the performance of automatic abstract system.

最后对自动摘要系统的性能进行了讨论。

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An abstract object-oriented model for power network topology is built up and an automatic generation method of primary topology is introduced, which applies the model and system vector coordinates.

提出了一种面向对象的抽象电力网络拓扑的模型，并用此模型实现了用系统矢量图的坐标关系自动生成原始拓扑的方法。

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Abstract: : there are increasing requirements for online examination system, but there is no mature marking method for automatic assessment of the subjective questions.

摘要：在线考试系统需求越来越高，但其中主观题的自动阅卷评分一直没有较为成熟的方法。

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