Aerial photo shows laborers working at the construction site of a long span transmission tower of Baihetan-Zhejiang ultra-high-voltage (UHV) power transmission project by the Yangtze River in Chizhou, east China's Anhui Province, Aug. 1, 2022.

Construction of the main structure of a 345-meter-high long span transmission tower of Baihetan-Zhejiang UHV power transmission project was completed here Monday. (Photo by Zhao Xianfu/Xinhua)

Aerial photo shows laborers working at the construction site of a long span transmission tower of Baihetan-Zhejiang ultra-high-voltage (UHV) power transmission project by the Yangtze River in Chizhou, east China's Anhui Province, Aug. 1, 2022.

Construction of the main structure of a 345-meter-high long span transmission tower of Baihetan-Zhejiang UHV power transmission project was completed here Monday. (Photo by Zhao Xianfu/Xinhua)

Aerial photo taken on Aug. 1, 2022 shows the construction site of a long span transmission tower of Baihetan-Zhejiang ultra-high-voltage (UHV) power transmission project by the Yangtze River in Chizhou, east China's Anhui Province.

Construction of the main structure of a 345-meter-high long span transmission tower of Baihetan-Zhejiang UHV power transmission project was completed here Monday. (Photo by Zhao Xianfu/Xinhua)

Aerial photo shows laborers working at the construction site of a long span transmission tower of Baihetan-Zhejiang ultra-high-voltage (UHV) power transmission project by the Yangtze River in Chizhou, east China's Anhui Province, Aug. 1, 2022.

Construction of the main structure of a 345-meter-high long span transmission tower of Baihetan-Zhejiang UHV power transmission project was completed here Monday. (Photo by Zhao Xianfu/Xinhua)

Aerial photo shows laborers working at the construction site of a long span transmission tower of Baihetan-Zhejiang ultra-high-voltage (UHV) power transmission project by the Yangtze River in Chizhou, east China's Anhui Province, Aug. 1, 2022.

Construction of the main structure of a 345-meter-high long span transmission tower of Baihetan-Zhejiang UHV power transmission project was completed here Monday. (Photo by Zheng Xianlie/Xinhua)

Aerial photo taken on Aug. 1, 2022 shows the construction site of a long span transmission tower of Baihetan-Zhejiang ultra-high-voltage (UHV) power transmission project by the Yangtze River in Chizhou, east China's Anhui Province.

Construction of the main structure of a 345-meter-high long span transmission tower of Baihetan-Zhejiang UHV power transmission project was completed here Monday. (Photo by Zheng Xianlie/Xinhua)

Aerial photo taken on Aug. 1, 2022 shows a long span transmission tower of Baihetan-Zhejiang ultra-high-voltage (UHV) power transmission project by the Yangtze River in Chizhou, east China's Anhui Province.

Construction of the main structure of a 345-meter-high long span transmission tower of Baihetan-Zhejiang UHV power transmission project was completed here Monday. (Photo by Zheng Xianlie/Xinhua)

Aerial photo taken on Aug. 1, 2022 shows the construction site of a long span transmission tower of Baihetan-Zhejiang ultra-high-voltage (UHV) power transmission project by the Yangtze River in Chizhou, east China's Anhui Province.

Construction of the main structure of a 345-meter-high long span transmission tower of Baihetan-Zhejiang UHV power transmission project was completed here Monday. (Photo by Zheng Xianlie/Xinhua)