| 摘要 |
<p>With reference to Figure 3 of the drawings, there is shown a vessel (10) including a buoyancy device (20), the buoyancy device (20) extending downwardly away from a hull of the vessel and including a ballast chamber for holding gas and liquid, means for adjusting the ratio of gas and liquid in the chamber, and a connection means (26) connecting the buoyancy device (20) and the hull of the vessel (10), wherein the ballast chamber is moveable relative to the hull of the vessel (10) for adjusting a distance therebetween.</p> |
