Compressor, start, run, shutdown:
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Automatic telephone switch
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Spinning machine
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Work in a warehouse, general noise, loaders
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Room noise, Glass bottles on a conveyor line
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Welding transformer operation under load
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Grind wood with a grinder, noise in
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Steam pump
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Letter press
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Forklift raises, lowers forks
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Power Plant Water Pumps
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Fluid drilling, Brewing unit
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Milling machine
★★★★★