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海洋声会聚区
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海洋声会聚区
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理学
水声探测
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ocean convergence zone
海洋声会聚区
在水下声道中,由于声线的折射和海面的反射出现焦散线(声线族的包络线)并与海面相交,在焦散线附近形成的高声强区域。其强度的峰值,比球面扩展传播损失后的强度值通常要高10~15分贝。
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primary problem
primary processes of radiation chemistry
primary process of radiation chemistry
primary producer
primary product
primary production
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primary productivity of waters
primary progressive aphasia
primary pseudoperfect number
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primary radical termination
primary radiometric thermometry
primary rainbow
primary rate interface
primary rate interface, PRI
primary ray
primary reaction
primary reagent
primary reference material
primary reinforcers
primary relationships
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primary representation
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