Dredgers, sand mining vessels, transport ships, gold pann...

1. The river is wide with a steady flow and adequate depth, preventing flooding during high water and maintaining a minimum depth of 1.0m during low water. 2. The riverbank is stable with a slope gradient between 1:1.5 to 1:4. 3. In navigable and rafting channels, keep a safe distance from pump boats to prevent collisions. 4. Avoid large eddy areas to prevent a buildup of floating debris at the intake, which may affect water flow. 5. A flat riverbank nearby serves as a suitable repair site.
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