Message in Chinese (Traditional) (中文(繁體))
步驟運算必須包含節點測試,如果是使用述詞,則必須包含用以對前一個節點集識別之節點集中的每個節點,進行測試的代數運算式,如此才能進行評估。
Unlocalized message
A step operation must involve either a node test or, in the case of a predicate, an algebraic expression against which to test each node in the node set identified by the preceeding node set can be evaluated.
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