T.Huy XSMB: Gi?i ??c bi?t k?t qu? x? s? Mi?n B?c ???c bao nhiêu v?y m?i ng??i ?i!Harmonics are periodic distortions of voltage, recent, or power sine waves. Harmonics in energy distribution methods are often because of non-linear masses for instance switched mode dc ability supplies and adjustable velocity motor drives.N?u may m?n trúng th??ng x?