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An experimental result of the convergence-zone in the deep sea is presented.The result showsthat under the condition of negative velocity gradient the turning-point convergence-zones can beformed by the sounds reflected back from the sea bottom.For the source-and receiver-depth of100 m and the frequency of 200 Hz,the gains of the first three convergence-zones are about 14 dB.Calculated gain and positions of the convergence-zones are consistent with experiment. 相似文献
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