Workers collect crude salt on Manas Lake in Hoboksar of northwest China's Xinjiang Uygur Autonomous Region, June 21, 2021. (Xinhua/Hu Huhu)

Aerial photo taken on June 21, 2021 shows vehicles transporting crude salt in Manas Lake in Hoboksar of northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Hu Huhu)

A worker prepares crude salt for purification on Manas Lake in Hoboksar of northwest China's Xinjiang Uygur Autonomous Region, June 20, 2021. (Xinhua/Hu Huhu)

Aerial photo taken on June 21, 2021 shows salt fields in Manas Lake in Hoboksar of northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Hu Huhu)

Workers collect crude salt on Manas Lake in Hoboksar of northwest China's Xinjiang Uygur Autonomous Region, June 20, 2021. (Xinhua/Hu Huhu)

Workers purify crude salt on Manas Lake in Hoboksar of northwest China's Xinjiang Uygur Autonomous Region, June 20, 2021. (Xinhua/Hu Huhu)

Photo taken on June 21, 2021 shows a view of Manas Lake in Hoboksar of northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Hu Huhu)

来源：Xinhua