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Page | 3/6 | Date | 17.08.2021 | Size | 494.13 Kb. | | #57205 |
| Echo Sounder Echo Sounder, Deck Cadet Handover, Deck Cadet Handover, Deck Cadet Handover, Deck Cadet Handover, GMDSS TESTS, GMDSS TESTS, GMDSS TESTS, GMDSS TESTS, GMDSS TESTS Propagation of sound molecules around the bell, pushing them outwards and then. pulling them back in again. These molecules in turn have a and forth at. the same rate as the sides of the bell.. By this process vibrations from a sound source are transmitted in all of waves, in much the same way that ripples in a pool radiate out from where a stone has been dropped into it. When the sound. Echoes from small objects
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