It gives a example of optimum design, calculates variation of structure parameters and operating performance under changing operation conditions and shows the calculating results about model tests.
并且给出了优化设计的实例；计算了变工况下的结构参数及运行性能变化，列出了型式试验计算机模拟结果。
Creating design is not just a variation of outward appearance. It is a reformation of the interior structure done with originality and ingenuity.
设计的创造，并不是表面上呈现的变化，而是运用创意改善内部构造。
A mixed way with type, variation and mutual has been adopted to design product in the system and the process is managed by the tree structure of product.
系统采用混合工艺设计的方法，即综合运用典型、变异和交互式设计，以产品结构树的形式进行工艺管理。
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