| 摘要 |
The present invention relates to a multifunctional movable-weir sluice gate system for purifying contaminated river water, and more specifically is devised in such a way that contaminated river water of heavy specific gravity can be selectively drawn off through the lower part of a sluice gate without discharging the stored water such that the river water is cleaned and, additionally, is devised in such a way that a fishway is naturally formed such that the ecosystem is preserved. |
