| 摘要 |
The screen walls (1) have one or more singly directed hatches (5) in the screening at or near to the wall upper edges, permitting inlet of surface water from the surrounding water area. One or more hatches (3) singly directed outwards from the screening are at or near the bottom and/or upper edges of the screen walls (1), permitting outlet of bottom water and/or cleaned water from the screening. |
