系统而详实了解覆盖地球表面三分之二的海洋水域的化学特性、地形及水流特性代价高昂，但是可以实现的。
Systematic and detailed understanding of the chemistry, topography and flow of the waters that cover two-thirds of the planet would be costly, but it could be achieved.
我们可以通过将地图类型多次放入脚本中，为各种地形类型提供不同的权重，并且创建地形类型可以实现的更复杂规则。
We can give individual terrain types different weights by pushing them into the pool multiple times and create more complex rules about what terrain types can touch.
实验结果表明该模型能实现地形场景的实时浏览，提高地形场景的绘制效率。
The experiments show that and the real time dynamic browsing is achieved , thus the performance of terrain rendering is improved greatly.
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