The major features of this mechanism are advantages of generating mechanism of implicit rules to ease difficulty in solving complex problems and decomposing complex problems into typical subproblems to avoid match-retrieve of large scope 主要措施是:利用一类隐含规则的产生机制,来降低问题的求解难度;把复杂问题分解成若干典型问题来加以解决,避免大范围匹配-回溯。