взаємне перекриття секторів спостереження
valve-overlap
oblique line overlap
image overlap
rear area surveillance sector
sector surveillance
surveillance sector
surveillance, high- and low-altitude surveillance
surveillance, under surveillance
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
coverage sector