Dry cleaning:
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Off, on, standby, Forklift
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Mill for grinding grain, Brewing unit
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Automatic telephone switch
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Spectrograph
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Work, jamming, Generator, start
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Hydraulic down machine
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Low frequency running engine
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Forklift drives by
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Hammer knocking, Car factory, welding
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Lathe turning on, stop, work
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Conveyor belt, Conveyor
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Spinning machine
★★★★★