County X and County Y have similar terrain, but the population density of County X is significantly higher than that of County Y.

X 县和 Y 县的地形相似，但 X 县的人口密度显著高于 Y 县。

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Geomorphologic information database, which is mainly used to memorize and manage the map and geomorphic objects, is an important section of X-2000 high-speed 3d terrain display system.

地理信息库是X - 2000高速三维地形显示系统的重要组成部分，主要对地图和地理实体进行存储和管理。

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Buttermilk is an easy mountain with lots of green and blue terrain, but is also the home of the X Games, so teens and tweens love to go where their idols ski and ride.

FORBES: Snowmass