機器
abstract
auto
automobile
background
bearing
bright
car
car engine
chrome
clean
closeup
complexity
concept
crank
detail
diesel
energy
engine
engineering
fuel
garage
gear
generator
icon
illustration
industrial
industry
jet
manufacturing
mechanic
metal
metallic
modern
motor
muscle
new
part
parts
piston
power
precision
repair
shiny
spare
symbol
teamwork
technology
transportation
vehicle