| 摘要 |
<p>The closure has a set of vertical slots that are mechanically coupled and controlled by a common drive, where width and shape of the slots are adjusted by rotational movement about a vertical bearing axis. The bearing axis runs in a flow regulated lamellae cross section. The lamellae cross section is individually arranged by using molding or composition molding or lamination for different local water level conditions so that an additional effect is obtained on flow distribution and water flow-rate in the vertical slot.</p> |
