| 摘要 |
The invention relates to methods making it possible temporarily to fix equipment to the submerged hull of a vessel. It consists in providing this equipment 10, 12 with cavities 22, 23 which can be filled with air and the volume of which makes it possible to obtain an essentially neutral buoyancy of the assembly. During positioning, this cavity is filled with air. After positioning, water is allowed to penetrate. For removal, the water is removed with compressed air. It makes it possible to fix a sonar under a boat in the event of need. <IMAGE>
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