To adhere, the setae rely on small electromagnetic attractions between molecules called van der Waals forces.

为了具有粘附性，刚毛依靠的是分子间被称为范德华力的力产生的微弱电磁吸引力。

The electromagnetic attraction is pictured as being caused by the exchange of large numbers of virtual massless particles of spin 1, called photons.

电磁吸引力被描绘成由大量自旋为 1 的虚拟无质量粒子（称为光子）交换引起。