石油的深部超源论有着严格的实验基础。

The theory of deep source origin is based on strict experiments.

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这种方法要求联邦系统首先从远程数据源获取由谓词引用的数据的一个超集，然后通过谓词在本地对其进行过滤。

This approach requires the federated system to retrieve a superset of the data referenced by the predicate from the remote data source, and then filter it locally against the predicate.

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源可以是目标的一个超集。

The source can be a super-set of the target.

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