機器
abstract
age
background
broken
change
concept
corrode
corroded
corrosion
decay
discolored
durability
durable
end
flake
from
harm
iron
material
materials
metal
metallic
off
old
old fashioned
outdated
past
pattern
picture
run down
rust
rusty
scrap
space
symbol
technology
texture
textures
time
tooth
transience
weather
weathered
yellowed