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ARRC abbr.
abbr.	Rapid Reaction Corps; Aeronautical Radar Research Center; Aerospace Rescue and Recovery Center; Aerospace Rescue and Recovery Command; Air Reserve Records Center; Allied Rapid Reaction Corps
abbr., BrE	Association of the Royal Red Cross
abbr., el.	all-round radar coverage
abbr., foreig.aff.	ACE Rapid Reaction Corps
abbr., railw.	Advanced Railway Research Centre
abbr., scottish	Allied Command Europe Rapid Reaction Corps (NATO)
abbr., space	Advanced Robot Research Centre
tech.	aeronautical radar research complex