оглядова щілина
observation slit
slit trench
slit type of sight
vision slit
narrow slit trench
weapon slit
view slit
shell slit
fire slit
slit one's throat
sight slit
integrated engagement-sighting system
radar sighting
sighting device
sighting equipment
sighting instrument
intersection, direct sighting
trunnion tilt sighting device
adjusted line of sighting
bore-sighting telescope
dial-sight sighting head
horizontal sighting string
sighting rod
sighting compass
night sighting (device)
sighting and laying equipment
sighting angle
sighting disk
sighting line
sighting number
sighting periscope
sighting plane