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Air Surveillance ['ɛə ,sə:'veɪl(ə)ns]
mil., abbr. AS
air surveillance ['ɛə ,sə:'veɪl(ə)ns]
mil., logist. The systematic observation of air space by electronic, visual or other means, primarily for the purpose of identifying and determining the movements of aircraft, friendly and enemy, in the air space under observation. (FRA)
Air: 83 phrases in 10 subjects
Abbreviation49
Ecology4
Energy industry1
Meteorology1
Military17
Non-governmental organizations2
Oceanography & oceanology2
Trademark1
Transport5
United States1

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