Automatic telephone switch:
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Electric industrial motor
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Brewing unit, mill for grinding grain
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Factory Atmosphere
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Run, start, shutdown, Compressor
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Welding transformer operation under load
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Hydraulic machine up
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Stitching machine
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Forklift drives by
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Power Plant Water Pumps
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Stop, work, Lathe turning on
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Mechanical lift
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Working machine engine
★★★★★