Wotie: The Standard for Riverbed Cleaning in Neijiang
Wotie, which is buried at ‘Fengqiwo’ in Neijiang, serves as the standard for dredging and the marker for the depth of riverbed maintenance each year. Its primary function is to indicate the depth of excavation. Following the principle of ‘deep dredging, low dam’ established by Li Bing in the Dujiangyan irrigation system, river channels have […]
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