英文關鍵字
automobile
automotive
belt
benzine
block
cables
cam
camshaft
car
chain
closeup
complicated
details
disassembled
engine
gasoline
gear
gearing
gears
inside
iron
lifter
lube
luboil
lubricant
machine
machinery
mechanic
metal
motion
motor
move
nobody
objects
oil
overhaul
part
petrol
repair
rocker
service
servicing
shaft
spring
stainless
steel
technology
transportation
valve
vehicle