To see logical derivation types, expand Service Metadata in the navigation tree.

要查看逻辑派生类型，在导航树中展开ServiceMetadata。

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Then through academic summarize and logical derivation, we put forward the concept model and theoretic hypotheses.

通过理论研究和逻辑推导，提出了概念模型和理论假设。

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Then through academic summarize and logical derivation, we put forward the concept model and theoretic hypotheses.

通过理论研究和逻辑推导，提出了概念模型和理论假设。

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