機器
abstract
aeroengine
aeroplane
aerospace
air
aircraft
airline
airplane
aviation
background
blade
blades
close
detail
energy
engine
engineering
fan
industrial
industry
jet
machinery
maintenance
mechanic
mechanical
metal
motor
part
plane
power
powerful
propeller
rotor
steel
technology
transport
transportation
turbine
turbo
turbojet
up
ventilator