| 摘要 |
<p>The invention relates to improvements in an apparatus, such as pipelines (2) and associated equipment and to a method of making, insulating, providing buoyancy to, recovering and installing submarine apparatus. The marine or submarine apparatus comprises an impermeable enclosure (1) associated with the apparatus (2), which enclosure is tightly packed with hollow microspheres (3) to a density where, when submerged in use, the internal pressure of the microspheres is greater than or substantially equal to the water pressure on the apparatus.</p> |
