Air compressor, air blow:
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Hydraulic pump
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Grind wood with a grinder, noise in
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Drone in a mine tunnel, Factory atmosphere
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Hydraulic down machine
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Forklift in motion
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Vibrosieve at the factory
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Notches, print imprinted in cardboard
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The atmosphere of the factory, rattling
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Lithographic press
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Working machine engine
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Spectrograph
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Circular knitting machine
★★★★★