At present, this system has been buildt.The accomplished tasks possess some extent reference meaning for the development of huge literature intelligentized knowledge database. 目前，本系统处于建设中，所完成的工作对大型文献智能知识库系统的开发具有一定借鉴意义。
It is difficult to choose a method which can found a rational knowledge base of mechanical design knowledge because of its variety, complexity and indeterminacy. 机械产品设计由于其知识的多样性，复杂性和不确定性，难以找到合理的知识表达方式以构建合理的知识库系统。
