Milling machine:
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On, off, standby, Forklift
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Forklift approaching
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Compressor industry
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Working,, Welding transformer, turning on
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Signal for lunch at the factory
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Small centrifuge
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Power station turbine
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Run, Compressor, shutdown, start
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Electric industrial motor
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Grind metal on a grinding machine in a
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Car factory
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Room noise, Glass bottles on a conveyor line
★★★★★