機器
auto
automobile
automotive
block
bright
car
chrome
clean
concept
detail
diesel
energy
engine
engineering
expensive
fast
fuel
generator
hose
industrial
industry
internal
iron
machinery
mechanic
mechanical
metal
metallic
modern
motor
new
oil
part
polished
power
powerful
prototype
pump
racing
repair
shiny
speed
steel
technology
transportation
tuning
turbo
valve
vehicle