S&T policymaking procedure includes S&T policy problem acknowledgement, S&T policy agenda setting, S&T policy planning, and S&T policy legitimatizing.

科技政策制定的程序包括确认科技政策问题、建立科技政策议程、科技政策规划及科技政策合法化。

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Optimal maintenance policy problem in a system is discussed and analysed in this paper. Due to the random variable concerned, one objective mathematical model of expectation value is developed.

本文讨论了系统的最优维修策略问题，考虑到题目中所涉及的变量大多为随机变量，我们建立了单目标的期望值模型。

youdao

Optimal maintenance policy problem in a system is discussed and analysed in this paper. Due to the random variable concerned, one objective mathematical model of expectation value is developed.

本文讨论了系统的最优维修策略问题，考虑到题目中所涉及的变量大多为随机变量，我们建立了单目标的期望值模型。

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