intercommunication system (intercom)
система двостороннього оперативного зв'язку
система двостороннього оперативного зв'язку
vehicle intercommunication system
fire extinguishing system sprinkler system and fire alarm system
merchant ship communication system (mercomm system)
multiple launch rocket system (MLRS); multiple rocket launcher 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