機器
aeroplane
air
aircraft
airline
airliner
airplane
airport
aviation
background
blade
combustion
concept
design
detail
drive
energy
engine
engineering
fan
flight
fly
force
horsepower
industry
jet
machinery
mechanical
metal
modern
motor
plane
power
propeller
rotor
sky
speed
spiral
steel
technology
transport
transportation
travel
turbine
turbo
turbofan
turbojet
ventilator
wind