| 摘要 |
The invention relates to a device and a method of towing new or used pipeline below water-level and sinking it on location, said device having first means for adjusting the collective floating capacity of the device and the portion of the pipeline engaged by the device, and second means which, depending on a velocity in relation to the water to be applied to the assembly of the device and the pipeline coupled to it, supply an additional upward force. |
