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national airspace system
avia. 国家空域交通管制系统
el. 国家航空航天系统
mil., air.def. {美}国家空域系统
space 国家空域管制系统
National Airspace System
space 全国空域系统
 English thesaurus
National Airspace System
abbr. NAS
avia. национальная система воздушного пространства США (masay)
avia., amer. The common network of U.S. airspace; air navigation facilities, equipment and services, airports or landing areas; aeronautical charts, information and services; rules, regulations and procedures, technical information, and manpower and material. Included are system components shared jointly with the military.
national airspace system
: 9 phrases in 3 subjects
Aviation2
Electronics3
Space4