The hardest faults to seek out are those that happen only Every so often—intermittent activities. They are often caused by undesirable connections, dust, Grime, corrosion or simply damaged wiring or connectors.K?t qu? x? s? mi?n B?c trên m?ng c?ng s? ???c c?p nh?t ngay vào lúc 18h15 h?ng ngày b?i t?i các tr??ng quay s? có nhân viên c?a c�