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
observation slit
slit trench
slit type of sight
narrow slit trench
weapon slit
view slit
shell slit
fire slit
slit one's throat
sight slit
sighting slit
field of vision
infrared night vision observation device
night (vision) sight
night vision device (NVD)
night vision kit
night vision sight
obscurant agent (vision-restricting agent)
Starlight Scope (Night Vision Sight)
vision nil (zero)
all-round vision block
direct vision block
night-vision flip-up goggles
surveillance vision block
vision block
all-around vision
binocular vision
video-frequency (vision) channel
vision