In fault-finding a circuit, don "t overlook the obvious. is there power?"

对一个电路吹毛求疵的时候，不要看不到显而易见的东西。(有功率吗？)

youdao

In fault-finding a circuit, don "t overlook the obvious. is there power?"

对一个电路吹毛求疵的时候，不要看不到显而易见的东西。(有功率吗？)

youdao