| 摘要 |
The module is for a floating vegetation island, having a buoyant frame with meshwork. It comprises three strong, flexible, water-resistant coarse-mesh nets (2-4) spaced apart and one above the other, the top and bottom ones being in frames. The middle one is fixed to the top and bottom ones, being contained in a frame joined to them at the corners by vertical tubes (5) filled if necessary with plastics foam. |
