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NOAA Ocean Explorer: Technology: Observation Tools: SONAR
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日期：2025-11-19
SOund NAvigation and Ranging—SONAR—is used to find and identify objects in water. It is also used to determine water depth (bathymetry). Sonar is applied to water-based activities because sound waves attenuate (taper off) less in water as they travel than...看更多
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