Aerial photo taken on Oct. 28, 2019 shows the Duobu bridge in Nyingchi, southwest China's Tibet Autonomous Region. The Duobu bridge is located on the Lhasa-Nyingchi high-grade road. (Xinhua/Purbu Zhaxi)
Aerial photo taken on Oct. 28, 2019 shows the Duobu bridge in Nyingchi, southwest China's Tibet Autonomous Region. The Duobu bridge is located on the Lhasa-Nyingchi high-grade road. (Xinhua/Li Xin)
Aerial photo taken on Oct. 28, 2019 shows the Duobu bridge in Nyingchi, southwest China's Tibet Autonomous Region. The Duobu bridge is located on the Lhasa-Nyingchi high-grade road. (Xinhua/Purbu Zhaxi)
Aerial photo taken on Oct. 28, 2019 shows the Duobu bridge in Nyingchi, southwest China's Tibet Autonomous Region. The Duobu bridge is located on the Lhasa-Nyingchi high-grade road. (Xinhua/Li Xin)
Aerial photo taken on Oct. 28, 2019 shows the Duobu bridge in Nyingchi, southwest China's Tibet Autonomous Region. The Duobu bridge is located on the Lhasa-Nyingchi high-grade road. (Xinhua/Purbu Zhaxi)
Aerial photo taken on Oct. 28, 2019 shows the Duobu bridge in Nyingchi, southwest China's Tibet Autonomous Region. The Duobu bridge is located on the Lhasa-Nyingchi high-grade road. (Xinhua/Li Xin)
