This pair of particle is known as an electric dipole.

这对粒子被称为偶极子 电的”。

So in our electric dipole the lines start at the positively charged particle and move toward the negatively charged one.

在电双极性中，线开始于 粒子带正电并趋向于负粒子。

If the magnitude of the positive charge in our electric dipole is doubled, then twice as many lines leave the positive point charge.

如果偶极子的电荷加倍，它离开 正点电荷线数的两倍。

And for an electric dipole – which is one positive point charge and one negative point charge – the electric potentials from individual charges can be added together.

对于由两个电荷组成的偶极电分子 正负分，每个电荷的电势可以相加。