A cover, as its name suggests, is a covering element. It is called a generic cover anything that is placed on top of another to cover or protect it. Applied to different disciplines can refer to: The cover, in binding, each of the covers that protect a book or magazine. The deck, in nautical, each of the floors of a ship. The solar roof, structure of solar panels that is placed on a roof, like the roof of a building. The electron shell, electron layer or electronic layer, set of orbits that follows a group of electrons around the nucleus of an atom.
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