Small centrifuge:
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Spectrograph
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Work in a warehouse, general noise, loaders
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Power station turbine
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Lithographic press
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Start, jamming, Generator, work
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Rattling, The atmosphere of the factory
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General noise, Factory work
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Compressor industry
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Welding transformer operation under load
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Laser welding
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Book press
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Working,, Welding transformer, turning on
★★★★★