Essential measurements: Electricity waveforms with numerical values such as resistance, diode, continuity and capacitance measurements Tay v?t n? c?u lông s? m?t Vi?t Nam, Nguy?n Thùy Linh ?ã không th? t?o ra ??a ch?n tr??c tay v?t s? hai th? gi?i Chen Yu Fei t?i v&ograv