英文關鍵字
airfield
airport
area
authority
behind
boss
britain
clean
cleanup
danger
dangerous
debris
drag
dragging
equipment
fod
foreign
hazard
hazardous
kingdom
landing
maneuvering
mat
mats
object
objects
operations
ops
prevent
prevention
prior
risk
runway
scenes
strip
sweep
takeoff
tarmac
taxiway
the
transportation
travel
uk
united
unwanted