Glass bottles on a conveyor line, room noise:
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Working machine engine
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Hydraulic activator
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Small centrifuge
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Notches, print imprinted in cardboard
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Air compressor turn on, turn off
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Air blow, Air compressor
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Welding transformer operation under load
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Working,, turning on, Welding transformer
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Newspaper press
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Generator, start, work, jamming
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Forklift approaching
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Gas welding
★★★★★