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A suction cup is a cup-shaped device designed to create a partial vacuum when pressed against a smooth surface. This vacuum allows the cup to adhere firmly to the surface. The principle behind its function is related to atmospheric pressure; when the air is expelled from under the cup, the external atmospheric pressure pushes the cup against the surface, creating a strong hold. This simple yet effective mechanism is utilized in various applications, from hanging objects to more complex industrial uses.123

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  1. suction cup
  2. pump
  3. vacuum cup

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