Spectrograph:
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Breakdown press
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Mechanical lift
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Noise in, Grind wood with a grinder
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Hydraulic down machine
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Fluid drilling, Brewing unit
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Machine engine gaining momentum
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Factory atmosphere, drone in a mine tunnel
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Oil pump
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Rattling, The atmosphere of the factory
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Industrial exhaust fan
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Small centrifuge
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Lathe turning on, work, stop
★★★★★