機器
air
auto
automobile
automotive
cabin
car
care
change
check
clean
cleaner
closeup
condition
dirt
dust
element
engine
engineering
equipment
filter
filtration
health
horizontal
hygiene
maintenance
manufacturing
mechanic
mechanical
motor
new
object
oil
order
paper
part
particle
passenger
pollution
protection
removing
repair
replacement
service
system
technician
transport
transportation
vehicle