The flow movement state at the junctions of open channels is very complex. and one-dimensional high-precision numerical simulation still faces significant challenges. This paper established a mathematical model of hydrodynamics at the junctions of open channels. which was completely decoupled from branch channels and junctions. https://www.diegojavierfares.com/mega-grab-Dacriosolmed-Gocce-Oculari-10ml-super-save/