The objective is to inquire into the change rule of the dynamic parameters and study how to make a reasonable statistical inference about it.

目标是探讨动态回归系数随时间变化的规律，并从数理统计学角度研究如何对其作出合理的推断。

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Objective To research the increment rule of expanded skin by studying dynamic change of collagen I content of the expanded skin in expanding course.

目的通过对扩张过程中皮肤I型胶原含量的动态检测，探讨扩张皮肤“增量”的变化规律。

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Thus, the growth and obtain models must be established before making the proper manage decision, the structure and grow dynamic and obtain change rule of the stand will be grasped by the models.

因此，在制定正确的森林经营决策之前，首先必须建立林分生长与收获模型，以掌握林分结构、生长动态、货币收获变化规律，并预测林分对即将实施措施的反应。

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