| 摘要 |
An artificial reef (1) has an underwater sail (3) with tie down points (10) connected to one or more anchor points (7) via one or more respective tie down links (11) to anchor the sail within a body of water (2). Material or gas of lower density than the water is introduced under the underwater sail to provide an upwards lift force to expand or inflate the sail in an upwards direction and form the reef. |
