Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
전환로는 전기를 다른 형태의 에너지로 변환하는 장치입니다.jeonhwanroneun jeongireul dareun hyeongtaeui enejilo byeonhwanhaneun jangchimnida.A converter is a device that transforms electricity into another form of energy.