formulas of equivalent roughness n of compound channel
a (3) Try to design a flume experiment to verify which of the above three formulas is more accurate;
3 3 (2nP) 5 PR3 5 n = (En{p:) n = n = - Copy 2 P3 PRIA) g(P,R 1 P2 ni
a (3) Try to design a flume experiment to verify which of the above three formulas is more accurate; 3 3 (2nP) 5 PR3 5
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a (3) Try to design a flume experiment to verify which of the above three formulas is more accurate; 3 3 (2nP) 5 PR3 5
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