Mythological bird of Persian culture, which in theory could in its claws raise an elephant. Signal detection stands for Receiver Operating Characteristic. It can also be the acronym for Rate of Change, a change or oscillation rat. Also Roc, is the name that has been assigned to the currently considered the largest aircraft in the world, of Stratolaunch. It has 6 motors and double fuselage. It can reach a total weight of 590 tonnes on take-off. Artistic name of a rap singer, known as Roc Marciano and whose real name is Rahkeim Calief Meyer.
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