这是我们的条件:[1].Voltage:85Vac;Frequency:47Hz
[2].Voltage:85Vac;Frequency:63Hz
[3].Voltage:132Vac;Frequency:47Hz
[4].Voltage:132Vac;Frequency:63Hz
[5].Voltage:180Vac;Frequency:47Hz
[6].Voltage:180Vac;Frequency:63Hz
[7].Voltage:264Vac;Frequency:47Hz
[8].Voltage:264Vac;Frequency:63Hz
有谁知道这其中的电压和频率是怎么定义出来的吗?





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