无效行政行为主要是大陆法系国家和地区行政法上的概念、理论和制度。

On administrative law, the invalid administrative act is mainly a concept, theory and system in countries and areas of continental law family.

youdao

此后百年来，公共行政的理论先后经历了行为主义与后行为主义的影响，反国家主义与后现代思潮的冲击。

In later century, public administration was first influenced by behaviorism and post-behaviorism, and then impacted by anti-statism and post-modernism.

youdao

国家行为原则是国际法中一个古老而重大的理论问题。

The act of state doctrine is one of the ancient and important theories in international law.

youdao