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 electricity sine waves. Harmonics in electrical power distribution techniques are sometimes attributable to non-linear hundreds which include switched manner dc electric power provides and adjustable velocity m