Aerial photo taken on Sept. 14, 2022 shows machines working at the Changlu Hangu salt field, one of China's oldest coastal salt fields, in north China's Tianjin. Autumn harvest has recently started at the salt field and is expected to last until late October.(Photo: Xinhua)
Aerial photo taken on Sept. 14, 2022 shows the Changlu Hangu salt field, one of China's oldest coastal salt fields, in north China's Tianjin. Autumn harvest has recently started at the salt field and is expected to last until late October.(Photo: Xinhua)
Aerial photo taken on Sept. 14, 2022 shows machines working at the Changlu Hangu salt field, one of China's oldest coastal salt fields, in north China's Tianjin. Autumn harvest has recently started at the salt field and is expected to last until late October.(Photo: Xinhua)
Machines work in a salt pond in the Changlu Hangu salt field, one of China's oldest coastal salt fields, in north China's Tianjin, Sept. 14, 2022. Autumn harvest has recently started at the salt field and is expected to last until late October.(Photo: Xinhua)