(57) Abstract (Modified) Objective Regarding to the field which possesses the head, velocity of flow of that waterwayAs you suppress, air ray Shaun can point to the water flow, the side wallTo make also the travel upstream of the tiddler which travels upstream the ri easy, in the person, the moistureBring the serenity, thought of the integrity of habitat environment of the mite of the waterwayThe hydrophilicity which consideration is done - configuration of drop of the raw water is designated as purpose. Constitution It possesses the head, high level of the waterway and normal U of downstreamBetween letter configuration waterway A1 and A2 from downstream fish floor (fish blow hole) attachingComing deeply the field configuration apron waterway (the still water pond) to provide C, the difference in levelHigh-level of the section, air ray Shaun who responds to the field head (the airMixture) the step condition velocity of flow suppression fishladder waterway B which it can point the waterway vertical bridgewallPossessing also 3, the waterway fishladder drop where it combines and constitutes and becomes.
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