For this, a better understanding of the spatial dynamics of urban growth should be a precondition.
为此，更好地理解城市增长的空间动力学应该是一个先决条件。
Moreover, some newly developed methods which are used in modeling spatial dynamics of populations are introduced.
同时比较了几种常用的空间建模方法，并从动力学的角度进行了分类研究。
We analyzed the weather background during the major immigration period in 1999, and stimulated temporal-spatial dynamics of wind field and migration trajectories of the meadow moth.
本文分析了1999年各地草地螟主要迁入峰期的天气学背景，并对风场的时空分布及草地螟迁飞轨迹进行了模拟。
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