In this case, the action is simply to generate some form of notice, but you could perform a more complex action (such as the issuance of a citation) as the rule action.
在这个例子中，活动就是简单地生成某种形式的通知，但也可以在规则活动中执行更复杂的活动(如发传票)。
Citation indices, which work only where publications refer to their sources explicitly, form a tiny nebula in the digital universe.
论文索引仅仅在出版物在明白无误地参考其源头时才有用，它们在数字世界中形成了一个微小星云。
It must include the title of a work or a URL reference, which may be in an abbreviated form according to the conventions used for the addition of citation metadata.
HTML引用（Citation）标签 （ ） 表示一个作品的引用。它必须包含引用作品的符合简写格式的标题或者URL。
It must include the title of a work or a URL reference, which may be in an abbreviated form according to the conventions used for the addition of citation metadata.
HTML引用（Citation）标签 （ ） 表示一个作品的引用。它必须包含引用作品的符合简写格式的标题或者URL。
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