機器
3d
circle
cog
cogwheel
cogwheels
component
concept
conceptual
connection
cooperation
element
engine
engineering
equipment
factory
gear
gears
gearwheels
group
icon
illustration
industrial
industry
machinery
mechanical
mechanics
mechanism
metal
metallic
motor
part
pinion
power
rotation
silver
spin
steel
symbol
team
teamwork
technical
technology
teeth
tool
transmission
turn
turning
wheel
work