实体论的一个重要概念是实体间的通信。

An important notion of ontologies is entity correspondence.

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实体论的原先的意思是是作为一个哲学的分支的研究。

The original meaning of ontology is the study of being as a branch of philosophy.

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其实在笛卡尔的本体论中，世界上只有三种实体：心灵、物质和上帝。

In fact, in Cartesian ontology there are only three kinds of substance: mind, matter and God.

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