To provide the 28 hydroelectric power plants with enough water power the rivers water is diverted several times and almost the whole river was canalized.
Later, at approximately 10 weeks of prenatal development, these cords are canalized and form ducts, with the largest becoming the parotid duct for the parotid gland.
Raised field agriculture is a form of hydraulic cultivation using raised and canalized fields creating conditions in which the earth is above its natural height.