Administrative authority is the common research object for administration subject and Administrative law, and which is the base and center element of all the Administrative law theory.
行政权是行政学和行政法学的共同研究对象，它是全部行政法理论的基点和中心范畴。
In order to solve the problem concerning the contact-sealing theory for the common packing element, the design theory of "complete anti-extrusion" is put forward.
针对普通胶筒密封遵循接触式密封理论所存在的问题，提出了封隔器胶筒“完全防突”的设计理论。
In order to solve the problem concerning the contact-sealing theory for the common packing element, the design theory of "complete anti-extrusion" is put forward.
针对普通胶筒密封遵循接触式密封理论所存在的问题，提出了封隔器胶筒“完全防突”的设计理论。
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