英文關鍵字
airfield
airplane
airport
apache
armed
army
engine
flight
helicopter
land
machine
man
metal
military
motion
outdoors
propeller
rotation
rotor
runway
single
transport
transportation
turbine
vehicle
weapon
wing
英文關鍵字
airfield
airplane
airport
apache
armed
army
engine
flight
helicopter
land
machine
man
metal
military
motion
outdoors
propeller
rotation
rotor
runway
single
transport
transportation
turbine
vehicle
weapon
wing