模式语言可以让你贯穿整个设计，然而，我们也可以使用这些小的结构，基于一点一点的工程知识。
A pattern language guides you through the whole design, whereas we have these little pieces, bites of engineering knowledge.
通过对基于知识工程的设计的研究，重点分析了知识工程中的知识获取、知识表示和知识库等重要理论以及在系统中的应用；
With the study of knowledge engineering design, stress analyzed knowledge acquisition knowledge representation and knowledge base in knowledge engineering besides the application in system.
并给出装配模型的建立过程及基于工程知识的装配配合约束类型识别方法、配合特征相对自由度推理算法。
Then, the method of building the assembly model, recognizing mating constraint type based engineering knowledge, the algorithm of inferring relative freedom of mating feature are given.
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