機器
circle
clock
cog
cogwheel
component
concept
conceptual
cooperation
design
detail
development
engine
engineering
equipment
factory
gear
gearing
gears
gearshift
illustration
industry
innovation
machinery
mechanical
mechanics
mechanism
metal
objects
part
power
processor
rotation
round
shape
sign
silver
spur
spur gear
stainless steel
steel
stream
team
technical
teeth
transmission
web
wheel
work