What kind of city is Lanzhou?

Although the development is slower than other southern cities, with the development of Laining Economic Development Zone, Yantan High-tech Zone and Xigu Petrochemical Zone in recent years, Lanzhou's economy has also prospered rapidly. Topographically speaking, Lanzhou is like a long belt because of the topography of the north and south mountains and the Yellow River passing through the city. If you look at the map, Lanzhou is obviously divided into two parts, just like a gourd. In terms of transportation, there are three railways, namely Longhai, Lan Xin and Baolan, and Zhongchuan Airport. In addition, with the expansion of Zhongchuan Airport and the construction of intercity railways from lanzhou-chongqing railway and Lanzhou to Zhangye, Lanzhou has gradually developed into a better city. Of course, because it is a heavy industrial city, the pollution is also very serious, but as a native of Lanzhou, I still like Lanzhou very much.