In particular, if an element can contain only other elements, be sure to indicate that in the DTD.

特别是，如果一个元素仅能包含其它元素，那么一定要在DTD中表明。

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In this case, a rule applies only to elements that immediately follow another particular element.

在这种情况下，规则只应用于跟在另一个元素后面的元素。

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The elements used within the element may only reference a single UDDI business service.

元素中用到的元素可能只能引用一个UDDI企业服务。

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