英文關鍵字
aicraft
airbus
airplaine
alltitude
altitude
aluminium
asia
astro
avion
blue
cantilever
cloud
delta
ecology
elevation
engine
environment
flap
flight
fowler
grey
height
hight
krueger
landing
metal
pollution
polution
rain
ribs
river
sea
spars
speed
spoiler
stall
stringers
strips
thrust
turn
wing