The atmosphere of the factory, rattling metal objects:
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Forklift approaching
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Conveyor belt, Conveyor
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Start, Compressor, shutdown, run
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Spectrograph
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Power station generator
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Canning machine
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Hydraulic machine up
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Work, Generator, start, jamming
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Postal sorting line
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Notches, print imprinted in cardboard
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Signal for lunch at the factory
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On, off, Forklift, standby
★★★★★