By using the path implication closure as a tool, the algorithm cannot only effectively eliminate redundant nodes or predicates, but also identify invalid path expressions.
该算法以路径蕴涵闭包为工具，不仅可以删除路径表达式的冗余，还可以识别无效路径表达式。
By using the path implication closure as a tool, the algorithm cannot only effectively eliminate redundant nodes or predicates, but also identify invalid path expressions.
该算法以路径蕴涵闭包为工具，不仅可以删除路径表达式的冗余，还可以识别无效路径表达式。
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