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objects (en) > equipment (en) > navigational aids (en)

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定义

  • A navigational aid (also known as aid to navigation, or navaid) is any sort of marker which aids the traveler in navigation, usually nautical or aviation travel. Common types of such aids include lighthouses, buoys, fog signals, and day beacons. (en)

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http://aims.fao.org/aos/agrovoc/c_e4d170f5

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RDF/XML TURTLE JSON-LD 创建于 2019/7/22, 最后修改 2022/11/22