機器
3d
accuracy
automobile
background
binding
clock
clockwork
closeup
cog
cogwheel
concept
connection
cooperation
design
engine
engineering
equipment
focus
gear
gearbox
gearing
industrial
industry
instrument
machinery
macro
mechanical
mechanism
metal
motor
part
power
precision
render
rotation
steel
strength
symbol
teamwork
technical
technology
transmission
turning
vehicle
wheel