機器
abstract
art
background
black
business
cog
cogwheel
component
concept
conceptual
corporate
design
element
employee
engine
engineering
factory
gear
gearing
illustration
industrial
industry
join
laborer
machinery
mechanical
mechanics
mechanism
modern
repeat
rotate
rotation
seamless
spin
steel
symbol
technical
technology
tile
transmission
turn
wheel
white
work
worker