逻辑上，每个规则表达式都等价于一个状态机，而每个规则表达式的语法分析器都实现这个状态机。

Every regular expression is logically equivalent to a state machine, and the parser of every regular expression implements a state machine.

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转换表中的状态所实现的功能等价于SAXCountHandler中stack。

The states in the transition table implement the equivalent of the stack in SAXCountHandler.

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该文论述了拓扑空间(组)的同伦等价变换在有序介质状态和缺陷的拓扑分类中的应用问题。

In this paper the application of homotopy equivalence transformation of topological space sets to the topological classification of states and defects in ordered media is discussed.

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