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.
许多早期的工程分支不是基于科学，而是建立在以观察和经验基础而非理论知识为基础的经验上的。
Many of the early branches of engineering were based not on science but on empirical information that depended on observation and experience rather than on theoretical knowledge.
运用知识工程和系统工程层次分析法，建立了一个基于网络的品种资源信息管理系统。
In this study, Variety resources Information Network-based management system was developed by the use of knowledge engineering and system engineering.
运用知识工程和系统工程层次分析法，建立了一个基于网络的品种资源信息管理系统。
In this study, Variety resources Information Network-based management system was developed by the use of knowledge engineering and system engineering.
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