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수소이온농도(pH / hydrogen ion concentration)
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수심(Rock which covers and uncovers)
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수심기준면(Datum level)
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수심기준면(datum level)
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수역시설(harbour facilities, channels, anchorages and basins. waterways and basins)
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수온약층(Thermocline)
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수입할당(쿼타)제()
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수조망어업(Hand operated trawl by boat)
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수준원점()
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수중검사()
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