Spectrograph:
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Heidelberian sorting printer
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Work, Generator, start, jamming
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Printing press
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Factory atmosphere, drone in a mine tunnel
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Print imprinted in cardboard, Notches
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Hammer knocking, Car factory, welding
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Work in a warehouse, general noise, loaders
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Automatic telephone switch
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Gas welding
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Newspaper press
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Small centrifuge
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Grind metal on a grinding machine in a
★★★★★