转换层将应用一个推理过程(类似于前推链接法)，并检查规划树中的每个节点，看哪些查询转换适用于该节点。

The transformation layer will apply an inference process (similar to forward-chaining) and check for each node in the plan tree to see which query transformations apply to that node.

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派生：派生(Derivations)描述如何通过推理或数学计算将一种形式的信息转换成另一种形式的信息。

Derivations: Derivations describe how information in one form may be transformed into information in another form through an inference or mathematical calculation.

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最后，将私有模型及其推理部分转换为公共语言模型。

Finally, the private model and its inferred parts are transformed into a public language model.

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