| 摘要 |
The cover is formed by binding together a series of floating elements, each of which is formed around a floating core (1) in the centre of which are placed a plurality of portions of floating material (2), with a laminar envelope (3) and the entire unit placed in a cover (4), made up of a flexible sheet that may be waterproof or otherwise and may be formed by a mesh, the ends of the envelope (4) being closed by sewing (17) or any other suitable closing method, including upper and lower tension elements (11 and 10) and loops (12) and clevises or shackles (13) at the extremities to connect elements with one another to form the barrier. The whole is complemented with a flexible sheet (5) that extends downwards in a skirt (6) with a pocket (7) for ballast (8). |
