оглядова щілина
night-vision goggles (NVGs); night vision goggles (NVG)
NV (night vision) mount, NVG (Night Vision Goggles) mount
NV kit, NVG kit / Night Vision, Night Vision Goggles
permanent slot
slot-type groove
indexing slot
time slot
advance slot
cross slot
U slot of piston
valve head slot
ejection slot
end slot
extractor slot
half slot
guide slot
multi-slot muzzle brake
slot cooling
key slot
terminal slot cover
longitudinal slot
longitudinal slot in broad face
longitudinal slot in narrow face
longitudinal-slot antenna array
longitudinal-slot array
commissioned slot
exclusive use of a slot
using slot
slot
Slot (drone)
field of vision
infrared night vision observation device