機器
background
circle
cogs
cogwheel
color
development
device
element
energy
engine
engineering
equipment
group
illustration
industrial
industry
invention
iron
machinery
manufacturing
mechanic
mechanical
mechanism
metal
motion
motor
object
part
power
ratio
render
rotate
rotation
round
sizes
sprocket
technical
technology
teeth
tooth
torque
transmission
turn
turning
wallpaper
wheel
work
working