The hardest faults to discover are those who come about only Every now and then—intermittent activities. They may be because of bad connections, dust, Dust, corrosion or just broken wiring or connectors.Không ?? v?n n?n "?n ch?n" ?e d?a th? thao Vi?t Nam Ch? trong vòng ch?a ??y n?a n?m, th? thao Vi?t Nam rúng ??ng vì hai v? vi?c liên quan tr