Spanish airport operator, Aeropuertos Espanoles y Navegacion Aerea (AENA), is to invest nearly ?3 billion over the next 14 years on upgrading airports and the air navigation aids of the Air Navigation Regional Directorate of the Canary Islands, writes Frederik Naumann.
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机译：西班牙机场运营商Aeropuertos Espanoles y Navegacion Aerea（AENA）将在未来14年内投资近30亿英镑，用于升级机场和加那利群岛空中航行局的空中航行辅助设备，Frederik Naumann写道。
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