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。
Process knowledge expression, obtain, management technology, inference control strategy, explanation mechanism, and the application of they are used in CAPP system are introduced.
通过零件的特征参数属性和其特征编码关联其加工方法是目前技术水平下实现动态工艺知识有效管理的一种可行的方案。
The establishment of the relations between the feather code of parts and the working methods is the valid way of dynamic knowledge management in the current technology level.
该系统利用多种智能技术来提高电火花加工工艺设计的决策水平，并通过学习机制解决知识获取的瓶颈问题。
Multi intelligence techniques are applied in the system to raise the level of technology decision making in EDM, and the bottleneck of knowledge acquirement is settled with learning mechanism.
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