You can Examine a waveform of one stage using a waveform of A different period or Examine by using a previously calculated waveform on the identical test level. Webpage 69: Conversation + Các Internet site, ?ng d?ng quét t? ??ng d? li?u x? s? tr?c ti?p t? X? S? Minh Ng?c: K?t qu? c?p nh?t trên h? th?ng tr??c khi hi?n trên màn hình kho?ng 5