You could Examine a waveform of one period with a waveform of another phase or Assess that has a Beforehand calculated waveform on the exact same examination stage. Web site 69: ConversationPV/VOV.VN Tag: x? s? ki?n thi?t k?t qu? x? s? x? s? mi?n b?c M?i quý ??c gi? theo dõi VOV.VN trênÝ ngh?a m?i c?a vi?c “tìm ki?m s? ti?n b? trong khi duy