The identity transformation copies each node in the source to the output to provide a logically equivalent tree.

标识转换将源中的每个节点复制到输出以提供逻辑等效树。

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The identity transformation copies each node in the source to the output to provide a logically equivalent tree.

标识转换将源中的每个节点复制到输出以提供逻辑等效树。

youdao