Milling machine:
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Air compressor, air blow
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Electric industrial motor
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Brewing unit, fluid drilling
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Power station generator
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Box making machine
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Vibrosieve at the factory
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Milling machine
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Air compressor turn on, turn off
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Stitching machine
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Forklift truck moving away
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Compressor, shutdown, run, start
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Electric generator (hum)
★★★★★