This paper obtains some new types by using dualistic transformation and generalized transformationofaxis, the projections in straight line for earth pole.
对于地球极表象为直线的投影，本文运用对偶变换和广义轴位变换，得出了它们的几种新款式。
2
The electromagnetic field of a linear electric quadrupole moving uniformly along the axisof the quadrupole has been calculated with the relativistic transformation relation.
利用相对论变换关系计算了沿轴线方向匀速运动的线性电四极子的电磁场。
3
This article calculated out the field intensity of a electric dipole uniformly moving along the axisof the dipole using the transformation relation in the relativistic theory.