рельєф місцевості
terrain accidents
accidents prevention
accidents reporting
working group on statistics of accidents in general aviation
study group on aircraft accidents in private aviation
ground accidents
all terrain vehicle (ATV)
all-round surveillance of terrain
broken terrain
combat terrain information system (CTIS)
critical terrain
decisive terrain
difficult terrain
digitized terrain elevation data (DTED)
dominating terrain
engineer terrain intelligence
flat terrain
irregular terrain
key terrain
key terrain feature
mission, enemy, terrain (and weather), troops, time available, civil considerations (METT-TC)
MRAP All Terrain vehicle (M-ATV)
restrictive terrain
retention of terrain
rough terrain container handler (RTCH)
seize and secure (key terrain)
special purpose all-terrain vehicle (S-ATV)
terrain
terrain analysis
terrain analysis appreciation
terrain data
terrain exercise