1引言笔者按专家系统原理开发的“ESCAP”──计算机辅助机械制造工艺过程设计专家系统的基本结构框图如图1所示。图IESCAP系统基本结构框图专家系统的显著标志是知识库与推理机的分离。在此，“ESCAP”进行工作的两个重要前提是：知识的获取及表示；工艺控制策略及推理机的建 1 Introduction The author developed by the expert system principle “ESCAP” ─ ─ computer-aided manufacturing machinery manufacturing process design expert system block diagram shown in Figure 1. Figure IESCAP system block diagram of the basic structure of the conspicuous expert system is the separation of knowledge base and reasoning machine. Here, two important prerequisites for “ESCAP” work are: acquisition of knowledge and presentation; construction of process control strategies and inference machines