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海洋浅地层测量仪
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海洋浅地层测量仪
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海洋浅地层测量仪
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marine sub-bottom measuring instrument
海洋浅地层测量仪
利用声波在水中和水下沉积物内传播和反射的特性来探测海底浅部地层剖面结构和构造的仪器设备。是在超宽频海底剖面仪基础上的改进,是研究海底各层形态构造和其厚度的有效工具。又称次海底剖面仪。
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The National Office of Animal Health
The National Political Security Bureau
The National Program of Action for Child Development in China
The National Question and Leninism
The National Question in Our Programme
the National Road Construction Association
The National Salvation of Shanghai Literature and Arts Association
The National WWII Museum
The National Young Singers' Competition
The Nation –saving Association of Shanghai Literature and Arts
The Native Jurisdiction Ordinance
The Native Land Act,(1913,South Africa)
The Natives
The Natural Approach
The Natural Forest Protection Regulations
The naturalized magnate families of Qing and Qi prefectures
the natural region of Central China
the natural region of Inner Mongolia, China
the natural region of north China
the natural region of northeast China
the natural region of Northwest China
the natural region of South China
the natural region of sub-frigid zone in Qinghai-Xizang plateau,China
the natural region of temperate zone in Qinghai-Xizang plateau,China
the natural state of ethics
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