| 摘要 |
<p>Piping is placed on a floating vessel and its length is increased while maintaining it in a vertical position. The piping is lowered from the vessel towards the seabed while keeping it vertical and moving the vessel in the required direction. The increase in the length of piping placed on the vessel is maintained while the piping is lowered vertically towards the seabed until a part of it has been laid on the seabed in the required direction.</p> |
