Small crank rotation:
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Turn on the laser sword
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Digital beep
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Fishing torsion reels
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Breaking a wood-glass product
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Removing the napkins from the box
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Servo motor
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Scanning goods at the supermarket checkout
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Movement, Passenger elevator, stop
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Throw the item in the trash.
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Sine wave (975Hz)
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Instructor, girls, Dance school
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Hammering on construction debris
★★★★★