far field directional diagram

• 远场方向图

far field directional diagram的用法和样例：

例句

1. When external magnetic field direction and stress field direction are parallel,the resonance frequency is shifted to higher value,and the frequency linewidth becomes wider.
   在外磁场方向接近应力场方向时，共振频率向高值方向移动，其它区域共振频率则向低值方向移动。