查询词典 knowledge base

First, this thesis introduces basic theory of CBR , and studies many aspects of typical part design case , such as case representation, case retrieval, retain etc. Second, regards design code as case code in order to integrate the case with geometrical and non- geometrical information, and realizes the parametric modifying function for 3D solid model in the condition of Pro/E. Third, for the purpose of making true of system's aided design requirement, this thesis brings forward to create part design knowledge base with AI language CLIPS, and integrates the rule based KB into the system; finally, collects and summarizes the knowledge of shaft,gear,sleave, and a sample with ladder—shaft is shown in order to verify the correction of theory research.

首先，本文介绍CBR技术的基础理论，并重点研究典型零件案例的表示、检索、修改等功能；其次，以零件设计编号为案例编号实现对案例的几何与非几何信息的集成，并实现了三维实体模型在Pro／E环境下的参数化修改功能；再次，从系统辅助设计功能要求出发，提出将基于规则的知识库嵌入到系统内部，用人工智能语言CLIPS建立零件设计知识库；最后，对轴类、齿轮类、盘套类零件案例知识进行收集、总结，并通过阶梯轴设计实例验证了理论研究的正确性。

THE CANDIDATE PROFILEExperienced press toolmaker, process or production engineer or technician.Press tooling and toolmaker base knowledge. Problem solving abilities in design reviews and at the press.A working knowledge of tooling design and development.An understanding of CADCAM, CAE and FEA software.

要求技能：具备冲压模具制造、加工、设计、生产工艺或相关技术背景具备冲压模具以及模具制造的基本知识具备在设计审查和冲压阶段的实际解决问题的能力具备一定的模具设计和开发的工作经验。

In order to improve utilizable efficiency of knowledge, combined with database and object-oriented technology, a method of knowledge base management was discussed.

为了提高知识的利用效率，探讨了将数据库技术和面向对象技术结合的故障诊断专家系统知识库管理方法。

Aiming at the obtain method in the whole life cycle of the automobile, we use the conception of knowledge base and knowledge management, adding describing information for the stored information, make the system enable to identify and deduce the new information, and provide the guidance and constrainment based on the workflow.

第五章结合了理论研究开发设计了基于以PDM与ERP系统集成为代表的实现多视图转换的映射系统，以及针对实现集成后对信息进行知识表示、推理、搜索及推送的知识管理系统。

A knowledge base with self-contained functions and knowledge can consumedly improve efficiency and accuracy of a question answering system.

一个功能和知识完备的知识库能够大大提高问答系统的效率与准确率。

In the former representation, if no restrictions are imposed on formulas, then there is no algorithm to realize the reasoning in the resulted knowledge base; in the latter representation, the reasoning in the ontology represented by the description logic is decidable, while in general, for mathematical knowledge described by the first order logic which contains the ontology represented by the description logic, there is no algorithm to realize its reasoning.

在前者的表示中，如果对公式不作任何限制，那么得到的知识库中的推理不是可算法化的；在后者的表示中，以描述逻辑描述的本体中的推理是可算法化的，而以本体为逻辑语言的一部分的一阶逻辑所表示的数学知识中的推理一般是不可算法化的。

The essay also treats significance of this method in maths of high school education. It puts forward teaching strategy about how to emphasize maths transformation method, that is to place emphasis on basic knowledge, perfect knowledge structure, develop the transformation method, and improve the ability of transformation. We also base on our text books, and epurate and summarize the basic teaching strategy in our work.

接下来，论述了化归思想方法在中学数学教学中的意义，最后结合个人教学实践，提出了加强数学化归思想方法的教学策略，即夯实基础知识，完善知识结构；培养化归意识，提高转化能力；掌握化归的一般方法；强化通性通法教学；深入教材，反复提炼与总结等基本教学策略。

We summarized developing actuality and applying foreground of knowledge base inland and overseas. We have discussed trend of exploitation of literature on the internet, variety of requirement of consumer and organizing of resourse building, such as effective form of resourse, collection, desctibing, organizing and conformity of resource, knowledge management of digital resource, criterion and atandard of resource building, resultful safeguard of property right and long-term conservation.

文中概述了国内外知识数据库的发展现状和应用前景，讨论了网络文献信息开发利用的趋势和用户需求的变化，以及资源建设的规划与组织，如资源的有效规划与组织，资源的收集、描述、组织和整合，数据资源的知识性管理，资源建设的规范与标准，有效的知识产权保护和资源的长期保存。

The general knowledge rate in the target population is 78% as compared with the 22% rate found by the base-line survey, and especially the knowledge about maternal protectio, breast feeding, tachypnea treatment, time to be pregnant, development, vaccination and ect has shown a rapid increase after intervention; Th...

目标人群行为形成率有一定提高。

As knowledge block in knowledge base is fuzzy and is obtained randomly, we study the rough set model based on random fuzzy rough set s.

摘要当知识库中的知识模块既是模糊的又是随机得到的，我们定义了基于随机模糊集的粗糙集模型。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。