機器
aged
agricultural
antique
auto
automobile
black
block
bolt
cable
car
connection
contemporary
detail
diesel
dirty
electric
energy
engine
equipment
farm
filter
gas
generator
heavy
hood
industry
interior
mechanic
metal
motor
obsolete
oil
old
part
pattern
pipe
piston
power
repair
rusty
steel
strength
system
technology
tractor
truck
tube
vehicle
wire