Through the analysis in space time, it reveals the law of spatial and temporal distributing in the past time.
通过对洪涝灾害在时间上和空间上的分析，揭示了洪涝灾在历史上的时空分布规律。
Finally, the analysis of temporal and spatial performance is discussed.
最后对该方法进行了时间和空间性能分析。
This paper shows the design of spatial-temporal data structure, the analysis of methods of history information backward recovering, and some example of important programming.
给出了时空数据模型的设计、历史沿革追溯与时间断面复原算法的分析，以及算法实现中的关键部分。
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