The formula of dipole radiation the electromagnetic wave field is deduced by using the dimensional analysis, combined with the pictures of the electricfieldlines and magnetic field lines.
运用量纲分析的方法，结合电场线和磁感线图象，推导了偶极振子在波场区的辐射公式。
2
If we put a dipole that has the freedom to move, we put that dipole in an electricfield, it will align itself with the field lines.
若我们将偶极释放到自由空间中，比如说放到电场里，他们会自动排序按同一方向。
3
Finally, several Suggestions to improve the power frequency electricfield beneath transmission lines are put forward.