Industrial exhaust fan:
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Power station turbine
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Robotic assembly line
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Electric welding
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Brewing unit, mill for grinding grain
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Car factory, hammer knocking, welding
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The atmosphere of the factory, rattling
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Heidelberian sorting printer
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Air blow, Air compressor
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Spinning machine
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Welding transformer operation under load
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Gas welding
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Steam pump
★★★★★