And in expert system, displays in all kinds of diagnosis knowledge acquisition and the expression of the organization.
而在专家系统中，则表现在各类诊断知识的获取和组织表达上。
Process knowledge expression, obtain, management technology, inference control strategy, explanation mechanism, and the application of they are used in CAPP system are introduced.
介绍了工艺知识表达、获取和管理技术，以及推理控制策略、解释机制，及其在CAPP系统中的应用。
The key to the design of KBE system is rational and efficient expression, use and accessing design knowledge.
KBE系统的设计关键是合理有效的设计知识表示、利用和获取等问题。
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