That the study problem applying on the parent function method can get a series of results. This is a king of thinking with dialectical, sum up, and structural.

应用母函数法研究问题，可以得到系列结果，这是一种辩证性、总括性以及构造性的思维方式。

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The main work of this article is employing parent hull change method to achieve the design function on the basis of the characteristics of hull lines of Twin-skeg hull.

本文的主要工作是在分析双尾鳍船型线特征的基础上，利用船舶设计中母型船改造的方法实现双尾鳍船型线自动生成的功能。

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