The preconditions for the retroactive executive force of administrative act are predictability, retroactibility, and non-interference with the legitimate rights and interest of others.

赋予行政行为追溯执行力的条件是：可预见性、追溯可能性和不影响他人的合法权益。

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The administrative act of interaction is the main type and fashion of executive act to realize the function and the merit of the administrative law.

互动性行政行为是行政法实现这一功能与价值的主要行为类型和行为方式。

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Administrative Discretion is the power which is basis on the executive with the laws and regulations of the administrative act.

它是行政机关具有的依据法律法规的规定对行政行为进行行政裁量的权力。

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