?? h?a thi?t k? b?t m?t, bi?u t??ng s?c nét h?p d?n, kích thích nhu c?u tr?i nghi?m.Basic principle: Readings demonstrate the effective voltage based upon the average value of samples more than a complete amount of periods of the elemental frequencyN?u could m?n trúng th??ng x? s? mi?n Trung hãy ??n ngay m?t trong hai ??a ?i?m sau ?? ??i th??n