Factory atmosphere, drone in a mine tunnel:
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Notches, print imprinted in cardboard
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Dry cleaning
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Electric generator (hum)
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Factory work, general noise
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Grind metal on a grinding machine in a
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Power station turbine
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Canning machine
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Breakdown press
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Working,, Welding transformer, turning on
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Air blow, Air compressor
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Industrial exhaust fan
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Lithographic press
★★★★★
