作为国家基础地理空间框架数据的主产品形式，4d产品正逐步替代传统的模拟地图，在国民经济的众多领域得到广泛应用。
As the main form of national Spatial Data Infrastructure, 4d is widely used in many national economic fields in place of traditional maps.
从调查数据中，研究团队制成了第一张三维地下水地图，用统计模拟的方式显示了与不含砷相关的水平。
From the survey data, Berg's team created the first three-dimensional groundwater map, using statistical modelling to show levels that are relatively arsenic-free.
同时你还可以规划一条街道的地图，运行模拟器模拟居民逃离火灾时的交通流量。
You can simultaneously project a street map and run a simulation of traffic flow as residents seek to flee the fire.
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