The present invention relates to a method of manufacturing an electric rotating machine, which comprises a wire-shaped material that is wound on an axis of rotation of two or more rotating bodies in opposite directions to be connected to the rotating body and whose longitudinal deformation is controllable, A spatially reduced shrinkage phenomenon and a memory effect that changes linearly in the initial state of the material to generate a power such as a torsion spring and control the material wound in opposite directions to control bi-/RTI
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