機器
不要
abandoned
backhoe
backyard
beams
bolts
broken
building
closeup
construction
corrosion
decay
deserted
dirt
dump
dust
engineering
equipment
factory
garbage
girders
industrial
industry
iron
lot
many
metal
mud
nuts
old
parts
roof
ruins
rust
rusty
sand
scrap
sky
smoke
steel
structure
technology
trash
unprotected
wires
yard