Recharging the battery just involves pushing those electrons back onto the negative electrode to reset the whole process.

对电池重新充电涉及到一个过程，即通过外部的能量使电子重新回到负极由此电池得以再次放电。

Reactions at the negative electrode release hydroxide ions (OH–).

负极反应释放出氢氧根离子 (OH–)。

For every cathode, a battery needs an anode, a negative electrode.

对于每个阴极，电池都需要一个阳极，一个负电极。

Different chemical reactions occur at the battery's positive and negative electrodes.

电池的正极和负极会发生不同的化学反应。

A battery is made of a positive electrode called a cathode and a negative electrode called an anode.

电池由称为阴极的正极和称为阳极的负极组成。

In fact, if there's a depolarization wave that goes straight up, which is perpendicular to the positive and negative electrodes, then there'd be no deflection at all!

事实上，如果有一个除极波是竖直向上的，即完全垂直于正、负电极的话，那么心电图上就不会显示任何波形。

Because this light was originally produced by a negative electrode, or cathode, it was called a cathode ray, and it had a negative charge.

因为这种光最初是由负电极或阴极产生的，所以它被称为阴极射线， 它带有负电荷。

Pausing halfway through again, now the vector dipole goes in the opposite direction, and faces the negative electrode, which means there will be a negative deflection on the ECG tracing.

在流经一半时再次“冻结”定格，现在双极子的向量会指向相反的方向，对着负电极，这意味着在心电图上会显示出一个负向的波形。