Dujiangyan (Dujiang Weir), an ancient water conservancy work, is the name later also adopted by the city where the weir was built, in southwestern Sichuan Province. The age-old project became famous...
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Dujiangyan (Dujiang Weir), an ancient water conservancy work, is the name later also adopted by the city where the weir was built, in southwestern Sichuan Province. The age-old project became famous...