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
송전력은 전력망의 효율성을 결정하는 중요한 요소입니다.Songjeonryeogeun jeollyeogmang-ui hyoyulseong-eul gyeoljeonghaneun jungyohan yosoimnida.Transmission capacity is an important factor that determines the efficiency of the power grid.