英文關鍵字
aerodrome
aerospace
air
aircraft
airfield
airline
airplane
airport
airspace
army
aviation
bar
beep
blue
causing
clouds
commercial
communications
control
coordinates
coordination
decays
detect
displaying
flight
fly
flying
force
green
image
interference
jet
landing
loop
navy
plane
radar
refreshing
rotating
screen
signal
sky
surveillance
technology
tower
traffic
transportation
travel
vacation
view