機器
accumulation
ancient
ball
bearings
broken
closeup
components
control
corrosion
coupling
damage
destroy
device
dirty
disorderly
drive
equipment
gears
heavy
history
industry
life
machinery
maintenance
manufacturing
metal
mixed
mud
nostalgia
of
oxidation
rags
restore
robot
rust
scrap
spare
tear
vicissitudes
waste
ways
wear