機器
axis
background
bare
blades
build
close
close up
electricity
engineering
equipment
factory
gear
generator
giant
heavy
hydroelectric
hydrothermal
industrial
industrial equipment
industrial machinery
industry
internal
large
machinery
manufacture
manufacturing
metal
need
power
precision
pressure
propel
repair
rotor
spinning
stainless
steam
steel
technical
technology
texture
tool
turbine
up
wind
workshop