vertical envelopment

例句：

1. 1.The city's vertical envelopment is a major concern for its sustainability.
   这座城市的垂直包围层是其可持续发展的主要关切。
2. 2. The research on the vertical envelopment of urban areas has significant implications for urban planning.
   对城市区域的垂直包围层研究对城市规划有重大影响。
3. 3.The construction of the new highway will have a profound impact on the vertical envelopment of the surrounding areas.
   新高速公路的建设将对周围地区的垂直包围层产生深远影响。