сектор спостереження
aerodrome meteorological observing systems study group
space-based observing system
observing ammunition
observing angle
observing detail
observing interval
observing line
observing point
observing station
aerospace sector
air defense sector
automatic sector scanning
critical sector
defense and security sector
maritime defense sector
primary sector of fire
secondary fire sector
sector
sector of defensive responsibility
sector of support
security sector / structures
security sector reform (SSR)
security sector reform
technologically advanced sector
secondary sector of fire
firing sector
decisive sector
cradle toothed sector
windshield sector arm
worm and sector steering device
emergency sector of fire
course sector