Valsts valodas centra izstrādātie transporta, infrastruktūras un sakaru termini

Konteksts: [..] The lowest altitude which may be used which will provide a minimum clearance of 300 m (1 000 ft) above all objects located in the area contained within a sector of a circle of 46 km (25 NM) radius centred on a radio aid to navigation. [..]
Avots: Annex 3 to the Convention on International Civil Aviation - Meteorological Service for International Air Navigation