оптичний приціл
radio-optical line of sight
front sight (fore / muzzle sight)
sight, to take a (careful) sight
day-sight (day sight)
modular integrated display and sight helmet (Modular Integrated Display-And-Sight Helmet)
electro-optical countermeasures
electro-optical sensor
electro-optical system
optical decoy
optical device
optical electronic countermeasures
optical flash
optical gas mask
optical homing
optical intelligence
optical mine-hunting
optical munitions
optical range
optical relay
optical target-sensor
optical tracking
artillery optical reconnaissance
electro-optical warfare system
helmet-mounted optical display
optimized optical link helmet-mounted display
optical communication
optical receiver
optical transmitter
optical-fiber communication
electro-optical glide bomb
over-the-horizon optical communication
optical maser