引入一个集合的广义高阶相依集和广义高阶邻接集的概念，并讨论了它们的一些性质。

We introduce generalized higher-order contingent sets and generalized higher-order adjacent sets for sets, and also discuss some properties of them.

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通常，这种解决方案只适用于 “最新数据” 由相对离散的数据项构成的情况，而不适合用于整个数据集互相依赖的情况。

This solution is generally only relevant if "latest data" consists of relatively discrete items of data, not as much if the entire data set is interdependent.

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如果资料库中发生的变更可能会修改这项命令的结果集，相依性会使快取的项目失效。

If a change occurs in the database that would modify the results set of that command, the dependency causes the cached item to be invalidated.

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