This paper makes analysis on the main component factors and, based on this, selects rational models for forecasting patent developing trends.

对专利的主要构成因素进行了分析，在此基础上选择合理的专利发展趋势预测模型。

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Sample Rational models: Sample models for the portlet are provided in Rational Rose format.

Rational模型样本：portlet的样本模型是以Rational rose格式提供的。

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Designed by a Swiss-German painter named Walter Jonas, they looked rational enough in plans and models.

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The reason why economists in the late 19th century and much of the 20th put the rational utility-maximising individual at the heart of their models was not that they thought that economics should avoid looking into the brain, but because they lacked the technical means to do so, says Mr Colander.

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This approach is completely rational in the short term, and will not disrupt mindsets, organizational structures or business models.

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