Machine engine gaining momentum:
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Air compressor turn on, turn off
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Factory atmosphere, drone in a mine tunnel
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Spinning machine
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Robotic assembly line
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Heidelberian sorting printer
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Brewing unit, fluid drilling
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Hydraulic activator
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Forklift drives by
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General noise, Factory work
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Compressor industry
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Forklift approaching
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Notches, print imprinted in cardboard
★★★★★