| http://www.w3.org/ns/prov#value | - ed at an outer side of the stator, and a second rotor located at an inner side of the stator, which each of the first rotor and the second rotor includes a plurality of first permanent magnets and a plurality of second magnets made of different materials from each other, a battery provided in the body, an inverter coupled between the battery and the electromotor, the inverter including a plurality
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