Main body of arch bridge of Dali-Ruili railway to be completed

Aerial photo taken on Dec. 29, 2019 shows the arch bridge of Dali-Ruili railway over Nujiang River in southwest China's Yunnan Province. The main body of the bridge will be completed on Dec. 30. The bridge is currently the longest-spanning railway arch bridge with a single span of 490 meters. (Xinhua/Yang Zongyou)