电压

例句：

1. 1. The circuit has a voltage of 220 volts.
   电路的电压是220伏特。
2. 2. The battery provides a voltage of 3.7 volts.
   电池提供的电压为3.7伏特。
3. 3. The electric motor operates at a voltage of 500 volts.
   电动机以500伏特的电压运行。