Robotic assembly line:
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Crusher
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Heidelberian sorting printer
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Loaders, Work in a warehouse, general noise
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Car factory
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Book press
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Power station turbine
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Automatic telephone switch
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Circular knitting machine
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Grind metal on a grinding machine in a
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Working machine engine
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Glass bottles on a conveyor line, room noise
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Low frequency running engine
★★★★★