英文關鍵字
analyzing
auto
automobile
automotive
background
business
car
closeup
control
design
disassembling
electric
emergency
engine
equipment
examining
expertise
factory
fuel
garage
gear
hand
horizontal
industry
machine
maintenance
manufacturing
mechanic
metal
motor
oil
part
power
problems
repair
repairman
service
showing
station
steel
technology
tool
transportation
usa
vehicle
work
workshop