并以板翅式换热器为例，进行说明。本文方法对一般机械工程设计中的多目标问题也具有实用价值。

This approach, illustrated by an example of plate-fish heat exchanger is also practical for the engineering design of general machinery in which multi-objective problem should be considered.

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改变传统的工艺结构设计方法，从而提高产品的设计效率，成为机械工程设计领域的一个重要课题。

Changeing the traditional process design method to enhance the efficiency of product design, has become an important subject of Mechanical engineering.

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改变传统的工艺结构设计方法，从而提高产品的设计效率，成为机械工程设计领域的一个重要课题。

Changeing the traditional process design method to enhance the efficiency of product design, has become an important subject of Mechanical engineering.

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