Today's batteries operate under the same principle as the very first voltaic cell.

今天的电池工作方式相同 作为第一个伏打电池的原理。

When one or more voltaic cells are combined, their voltages add up, and together they form a battery.

当一个或多个伏打电池组合在一起时，它们的电压加起来形成一个电池。

Today we learned about what defines electric current and how we generate it using voltaic cells that make up batteries.

今天，我们了解了电流的定义以及我们如何使用构成电池的伏打电池来产生电流。

We call these connection points terminals, and we can connect multiple voltaic cells together by placing wires between their opposite electrodes.

我们将这些终端称为终端，我们可以通过在它们的相对电极之间放置导线来将多个伏打电池连接在一起。