The topographic analysis of grasshopper outbreak is the base to develop the prediction model for grasshopper outbreak.
草地蝗虫发生的地形分析是建立草地蝗虫发生预报模型的基础。
In reality, in order to get more convenient data organization for drawing, LOD model is to use theory of algorithms to reform intrinsic grid topographic data base.
所谓的LOD建模，其实质就是采用一定的算法思想将原有的网格地形数据进行重组，得到一种更加便于实时绘制使用的数据结构。
In reality, in order to get more convenient data organization for drawing, LOD model is to use theory of algorithms to reform intrinsic grid topographic data base.
所谓的LOD建模，其实质就是采用一定的算法思想将原有的网格地形数据进行重组，得到一种更加便于实时绘制使用的数据结构。
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