The value of educational policy subject is realized in three forms of meta-value, implicit value and explicit value.
教育政策主体价值依次表现为元价值、隐价值和显价值三重形态。
The minimum cost problems on a class of impulse control model are studied, under certain conditions, an explicit value which is the minimum of the cost function is given.
研究了一类脉冲控制模型的最小费用问题，在一定条件下，给出了相应的最佳费用函数具体解析式。
The minimum cost problems on a class of impulse control model are studied, under certain conditions, an explicit value which is the minimum of the cost function is given.
研究了一类脉冲控制模型的最小费用问题，在一定条件下，给出了相应的最佳费用函数具体解析式。
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