vertical distribution

例句：

1. 1.The data shows that the vertical distribution of population is not uniform.
   数据显示人口的垂直分布并不均匀。
2. 2. The study focused on the vertical distribution of resources in the region.
   该研究专注于该地区资源垂直分布的问题。
3. 3.The city's vertical distribution of buildings has been studied for decades.
   这个城市的建筑垂直分布已经研究了几十年。