機器
bicycle
bike
black
bmx
chain
chainwheel
circle
cog
cogwheel
component
connection
crank
cycle
cycling
design
element
engine
equipment
gear
gearwheel
icon
illustration
industrial
industry
iron
isolated
link
logo
mechanical
mechanism
metal
part
race
repair
ring
round
sign
speed
sport
sprocket
steel
symbol
technology
transmission
transport
vehicle
wheel
work