Lathe turning on, work, stop:
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Hydraulic machine up
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Signal for lunch at the factory
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Air compressor turn on, turn off
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Grind wood with a grinder, noise in
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Stop, work, Lathe turning on
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Low frequency running engine
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Bottling plant
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Hydraulic down machine
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Small centrifuge
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Machine engine gaining momentum
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Robotic assembly line
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Grind metal on a grinding machine in a
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