The optimal classification is a key problem in histogram and has decisive effect on histogram.

最优分组是直方图法中的一个关键问题，对直方图法的有效性起着决定性的作用。

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The experiment results indicate that the optimal classification bands combination selecting approach supplied in this paper is quite effective.

实验结果表明，本文给出的高光谱遥感影像优化分类波段组合选择方法是非常有效的。

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With the aim of optimal system design, the article discusses the model classification, the modeling method and the system design process on the basis of general conception of engineering model.

从工程模型的一般概念入手，以系统优化设计为目标，重点讨论了模型的分类、建模方法和系统的设计过程。

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At this step some of the things to consider are process design for product identification, valuation, classification and separation and the supporting technology system implementation to have an optimal separation approach.

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