miners navigating the tunnels beneath earth surface with safety equipment |
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| navigate by keyword : career coal construction darkness depth development engineering enterprise environment excavation exploration extraction geological geology helmets industrial industry infrastructural job journey labor lights mineral miners mining occupation passage passageway pathway production professional project prospectors resource route safety shaft structure subsurface system teamwork tunnel underground vehicle work workforce |
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| A group of miners are walking into the depths of a coal mine, illuminated by the lamps on their helmets, navigating the narrow tunnels with safety equipment to extract the precious mineral |
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