1)automatic circuit switching,自动电路转换，电路自动切换2)automatic switching circuit,自动切换电路3)Automatic electric circuit switching,自动电路切换4)automatic converting circuit,自动转换电路5)automatic switching over design of voltage circuit,电压回路自动切换6)ats circuitry,自动转换开关系统电路
用法例句
The application of 555 timer in automatic switching circuit;
