| 摘要 |
<p>Porous groynes (30) for land reclamation which includes a plurality of spaced stanchions (31) and at least one screen grid (32) means having a plurality of openings (39) therein through which fluid and fluid conveyed solids may pass and wherein the screen grid means is formed of a self supporting high density polyethylene, polypropylene, polymers, co-polymers, polymer mixtures or laminates.</p> |
