People working inside a coal mine
Palabras clave
person,
mining,
miner,
working,
coal,
industry,
helmet,
indoor,
machine,
energy,
work,
man,
dirty,
men at work,
hard hat,
occupation,
safety,
male,
tunnel,
adult,
carrying,
development,
effort,
employee,
engineer,
engineering,
factory,
foreman,
generator,
job,
load,
manufacturing,
material,
one person,
operation,
production,
standing,
tool,
transportation,
electricity,
heavy,
vest,
danger,
headwear,
holding,
preparation,
shovel,
equipment,
heap
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