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... is influenced by the terrain of the riverbed, so it's not about measuring a single point, but rather the cross-sectional flow volume.
This means that a cross-section must be selected, a marker placed on the opposite bank, a water level ruler installed in the river, and using the naked eye for the alignment of three points in a line, before using a propeller flow meter to measure line by line along the "cross-section."
This measurement method is quite traditional and requires a l ...
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