кут укриття / (тех.) кут закриття (природною маскою)
crest clearance
crest angle
topographic(al) crest
false crest
false-crest the target
crest
foam crest
fire crest
crest line
angle of clearance
blind angle / dead angle
air traffic clearance
clearance decontamination
clearance time
debris clearance
diplomatic clearance
fuselage and landing gear clearance zone
load clearance zone
percentage clearance
route clearance
clearance of fires
final clearance for the targets
post clearance assessment
post clearance inspection
safe terrain clearance
start-up clearance
take-off clearance
beach clearance unit (BCU )
clearance of overhead crossovers of a bridge
forward side slope ground clearance
axle clearance
bolt-sleeve clearance