So now that means if this is where the center of positive excess charge lies and on top of it is the center there is no displacement of the charge so there is no net dipole.
所以现在我们说，如果正电荷中心，就位于，那么还是在这里负电荷中心也在这里，所以没有空间偶极。
3
The problem of the dipole cloud is an effective scattering cross-section while observed by a monostatic radar was studied.