H10302: NOS Hydrographic Survey , St. Marys River, Michigan, 1989-07-31
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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,简称NOAA)拥有法定职权,可收集水文数据以支撑安全海图编制相关工作……



