Were there no transformers to switch the voltage, long-distance transmission of electricity would be impossible?

要是没有变压器来调节电压，远距离输送电力是不可能的。

youdao

Were there no transformers to switch the voltage, long-distance transmission of electricity would be impossible?

要是没有变压器来调节电压，远距离输送电力是不可能的。

youdao