One theory looks to electrostatic charge to answer this.

一种理论着眼于静电荷来回答这个问题。

When a current is passed through the electrodes, they generate patches of electrostatic charge.

当电流通过电极时， 它们会产生静电荷块。

These create an electrostatic charge on droplets to enhance the way they stick to foliage, although some farmers think it works better on cars than plants.

它们会在水滴上产生静电荷，以增强它们粘附在叶子上的方式，尽管一些农民认为它在汽车上比在植物上效果更好。