Readings demonstrate the helpful voltage dependant on the common value of samples about an entire variety of durations of the fundamental frequencyGi?i m?i (bao g?m t?t c? gi?i nào có s? thay ??i, c?p nh?t m?i ho?c ?i?u ch?nh)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?XSMB - SXMB - K?t qu? x? s? mi?n B?c ??