機器
aero
aeronautic
aeroplane
air
aircraft
airplane
airplane propeller
antique
aviation
aviator
avionics
biplane
blade
classic
combustion
cylinder
detail
engine
engineering
fighter
flight
fly
flying
force
front
gear
historic
hobby
horsepower
industry
jet
motor
old
power
propeller
propelling
radial
retro
rotating
rotation
round
screw
technology
transport
transportation
ventilator
vintage
wood