H10228: NOS Hydrographic Survey , Seymour Canal, Alaska, 1986-11-04
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The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe...
美国国家海洋和大气管理局(National Oceanic and Atmospheric Administration,NOAA)拥有法定职权,可收集水文数据以支持用于保障航海安全的海图编制工作……



