機器
automobile
automotive
background
camshaft
car
crankshaft
cylinder
disassembly
engine
engine mechanism
engineering
equipment
garage
gasoline
gear
head
industrial
industry
machinery
maintenance
mechanic
mechanical
metal
metallic
motor
oil
part
parts
piston
power
repair
repairman
serpentine belt
service
steel
technology
timing mechanism
transportation
tuning
vehicle
workshop