英文關鍵字
arm
automechanic
automobile
automotive
belt
benzine
block
cables
cam
car
chain
closeup
details
dirty
engine
equipment
focus
gasoline
gear
hand
hex
inside
iron
lifter
lube
machine
machinery
mechanic
metal
metallic
motion
motor
move
nut
objects
oil
overhaul
part
petrol
pinion
repair
rocker
selective
service
servicing
shaft
stainless
technology
unscrew
vehicle