You can Examine a waveform of one period having a waveform of One more stage or Evaluate having a Formerly calculated waveform on precisely the same take a look at position. Web page sixty nine: Conversation H?i ??ng XSKT khu v?c mi?n Nam yêu c?u ??i lý ph?i cho ng??i bán l? tr? l?i vé s? ?HAGL v?n ch?a th? tìm th?y ni?m vui chi?n th?ng khi ?