機器
abstract
aeroplane
air
aircraft
airline
airplane
aviation
background
blade
business
combustion
component
construction
design
detail
energy
engine
engineering
equipment
fan
flight
fly
flying
force
frame
fuel
industry
jet
machinery
mechanic
mechanical
metal
metallic
motor
part
plane
power
powerful
propeller
rotor
science
speed
steel
technology
thrust
transport
transportation
turbine
turbo