Its kernal principle is the central nature of theoretical knowledge.

后工业社会的轴心原则就是理论知识的中心性。

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Part II: Theoretical basis and functions of the principle of orality.

第二部分：言词原则的基础和功能。

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Part II: Theoretical basis and functions of the principle of orality.

第二部分：言词原则的基础和功能。

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