Power station turbine:
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Conveyor belt, Conveyor
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Turning on, Welding transformer, working,
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Air compressor, air blow
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Car factory, hammer knocking, welding
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Grind wood with a grinder, noise in
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Work, start, jamming, Generator
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Forklift truck moving away
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Automatic telephone switch
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Brewing unit, fluid drilling
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Spectrograph
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Forklift in motion
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General noise, Factory work
★★★★★