Air compressor turn on, turn off:
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Electric industrial motor
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Low frequency running engine
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General noise, Work in a warehouse, loaders
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Vibrosieve at the factory
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Small centrifuge
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Heidelberian sorting printer
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Forklift approaching
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Compressor industry
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Factory work, general noise
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Factory Atmosphere
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Welding transformer operation under load
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Rattling, The atmosphere of the factory
★★★★★