機器
aero
aerospace
air
airbus
aircraft
airline
airplane
aviation
combustion
complex
complexity
components
construction
detail
electronics
energy
engineering
engines
equipment
fly
flying
fuel
generator
horsepower
industry
jet
machinery
maintenance
mechanical
metal
metallic
military
parts
planes
power
powerful
reliability
repairing
science
security
symbol
technical
technology
transportation
travel
turbine
vehicle