機器
add
adult
auto
automobile
automotive
background
battery
black
cap
car
care
change
check
clean
closeup
device
dirty
distilled
electric
energy
engine
equipment
hand
industry
job
maintenance
man
mechanic
mechanical
metal
motor
open
part
people
person
power
red
repair
service
shop
single
system
technician
transportation
vehicle
water
white
work
worker