This paper introduces the main technology and basic principle of new pattern design of cardigan using combined pattern element method in CAD.
论述了羊毛衫CAD中拼图式组合设计新款式的主要技术和基本原理。
As the design evolves to meet new needs, key objects are loaded with pattern roles until they become hard to use or hard to change and the system has to be refactored or rewritten.
为了满足新的需求，设计也在不断演化，关键对象承担着各种模式角色，直到它们变得难以使用或者难以修改，最终不得不重构或者重写系统。
If we are able to identify an object oriented design that could solve a new design related problem, that would be a new design Pattern defined by us.
如果我们能够指出一个能够解决一个新的设计相关问题的面向对象设计，那么这将会是一个由我们定义的新的设计模式。
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