navigational system
навігаційна система
навігаційна система
navigational aid (NAVAIDs); aid to navigation (ATON)
short distance navigational aid
fire extinguishing system sprinkler system and fire alarm system
merchant ship communication system (mercomm system)
multiple launch rocket system (MLRS); multiple rocket launcher system
Air Force weapons system / AF weapon system
attitude-and-heading reference system / attitude and heading reference system (AHRS)
selective calling system, SELCAL system
active infrared (IR) guidance system
advanced intercontinental missile system