機器
aerospace
air
aircraft
airplane
blade
build
combustion
construction
detail
display
energy
engine
engineer
engineering
equipment
fan
flying
front
fuel
gas
gas turbine
gear
generator
horizontal
industrial
industry
jet
machinery
maintenance
manufacturing
mechanic
metal
metallic
modern
open
power
powerful
safety
science
section
steam
steel
tech
technology
transport
transportation
turbine
turbo
vehicle
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