Circular knitting machine:
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Start, Generator, work, jamming
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Lithographic press
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Turn off, Air compressor turn on
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Lowers forks, Forklift raises
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Vibrosieve at the factory
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Hammer knocking, Car factory, welding
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Forklift truck moving away
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Working,, turning on, Welding transformer
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Electric generator (hum)
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Welding transformer operation under load
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Compressor, start, shutdown, run
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Circular knitting machine
★★★★★