Th?ng kê t? ??ng c?p nh?t khi k?t thúc bu?i t??ng thu?t tr?c ti?p k?t qu? x? s?Harmonics are periodic distortions of voltage, recent, or energy sine waves. Harmonics in ability distribution programs are frequently attributable to non-linear hundreds like switched method dc electrical power supplies and adjustable velocity motor drives..) b?n l?u