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dust and smoke in coal mine
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JPG 300 DPI
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Author:
dreamstime
License:
buy for Personal Use & Commercial
File Type:
JPG
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after
and
bend
cavern
coal
column
copper
corridor
curve
dig
dirt
dirty
dust
employment
energy
entrance
excavate
explosion
geology
hydraulic
industrial
industry
job
just
labor
lots
machinery
metal
mine
miner
mineral
modern
passageway
pick
pillar
profession
quality
reinforce
safety
skill
smoke
space
tracks
train
tunnel
tunneling
underground
underpass
work