пасивне прослуховування
passive listening device
passive electronically scanned array (PESA) / passive phased array
listening post
listening silence
listening surveiilance
check for listening devices
underwater listening post
gaining information by use of listening posts
listening device
surreptitious listening
surreptitious listening device
wall listening device
wall listening microphone
radio listening service
air listening post
heat passive homing guidance system
image-intensifying Passive Driving Periscope (PDP)
passive
passive air defense
passive armor
passive counterintelligence measures
passive deception measures
passive defence
passive defense measure
passive defenseequipment
passive defenses
passive detector
passive deterrents
passive electronic countermeasures
passive electronic protective measures
passive flight
passive homing