висота польоту над місцевістю
safe terrain clearance
terrain-avoidance / clearance radar
air traffic clearance
all terrain vehicle (ATV)
all-round surveillance of terrain
broken terrain
clearance decontamination
clearance time
combat terrain information system (CTIS)
critical terrain
debris clearance
decisive terrain
difficult terrain
digitized terrain elevation data (DTED)
diplomatic clearance
dominating terrain
engineer terrain intelligence
flat terrain
fuselage and landing gear clearance zone
irregular terrain
key terrain
key terrain feature
load clearance zone
mission, enemy, terrain (and weather), troops, time available, civil considerations (METT-TC)
MRAP All Terrain vehicle (M-ATV)
percentage clearance
restrictive terrain
retention of terrain
road clearance time
rough terrain container handler (RTCH)
route clearance
seize and secure (key terrain)