英文關鍵字
vertical
low
forecast
grass
rough
control
aircraft
aerodrome
safety
bag
windbag
horizontal
indicate
midair
space
measuring
background
runway
cloud
landing
fly
airfield
striped
wind
indicator
windsock
air
red
white
weather
direction
sky
storm
airport
sock
sleeve
windy
anemometer
symbol
aviation
signal
meteorology
blowing
flight
flag
speed
trees