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。

They bind to the proteins in neurons' cell membranes that let charged particles in and out, and lock out positively charged particles.

它们与神经元细胞膜中的蛋白质结合，使带电粒子进出，并锁定带正电粒子。

Now, what if we take a neutral conductive sphere, hollow out the inside, and stick a positively charged particle in the center?

如果我们现在取一个中性向量空心球怎么办 电荷和我们在它的中心放置一个带正电的粒子？

Our models of how subatomic particles behave predicts that over very long periods of time, protons — the positively charged particles in the nuclei of atoms — will decay.

我们关于亚原子粒子行为的模型预测，经过很长一段时间后，质子——原子核中带正电荷的粒子——将会衰变。

Say we have one positively charged particle and one negatively charged particle that are some distance apart with an equal and opposite magnitude of charge.

假设我们有一个带正电的粒子和一个带负电的粒子， 它们之间有一个距离相等和相反的负责。

Also, notice that a positively charged particle  moving through a constant electric field like this will experience an electrostatic force  in the direction of the electric field.

另外，请注意，带正电的粒子在这样的恒定电场中移动时，将会在电场方向上受到静电力。

But as far as electric current is concerned, the flow of negatively charged electrons in one direction is equivalent to the flow of positively charged particles in the opposite direction.

但就电流而言，带负电的电子在一个方向上的流动相当于带正电的粒子在相反方向上的流动。