由此产生的聚落地图显示，公元500年至公元850年，科潘古城崩溃时，城市周围农村人口的分布和密度发生了巨大变化。
The resulting settlement maps show how the distribution and density of the rural population around the city changed dramatically between AD 500 and 850, when copán collapsed.
澳大利亚和爱尔兰这些地图显示了人口是如何集中在城市地区的，而事实上，澳大利亚北部和中部没有人口登记数据。
These maps of Australia and Ireland show how population is concentrated in urban areas with virtually no people registered in the north and centre of Australia.
您可能知道西雅图和罗利是在美国的两端，但地图能够帮助您显示出两个城市之间的距离。
You probably know that Seattle and Raleigh are on opposite sides of the United States, but a map helps you visualize the distance between the two cities.
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