機器
aerodynamic
aerospace
aircraft
aviation
big
blade
body
carbon
circle
clear
component
concept
detail
energy
engine
engineering
equipment
fan
fly
force
fuel
gear
industry
iron
jet
large
material
metal
motor
nozzle
part
pilot
plane
power
propeller
rapid
reliability
rotor
sky
speed
steel
supersonic
technology
titanium
transport
turbine
turning
vehicle
work