Brewing unit, fluid drilling:
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Working machine engine
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Room noise, Glass bottles on a conveyor line
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Air compressor, air blow
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Power station generator
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Automatic folder
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Forklift raises, lowers forks
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Car factory, welding, hammer knocking
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Automatic telephone switch
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Book press
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Hydraulic pump
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Electric generator (hum)
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Factory atmosphere, drone in a mine tunnel
★★★★★