New-designed antenna system uses a retarded wave principle that cuts antenna height 60%.
新设计的天线系统采用了延迟波原理，使天线高度降低了60%。
A method of retarded Green function equation of motion is applied to inveti gate the surface spin wave spectrum of Heisenberg ferromagnet.
用格林函数运动方程方法研究了海森堡铁磁体表面自旋波谱。
A method of retarded Green function equation of motion is applied to inveti gate the surface spin wave spectrum of Heisenberg ferromagnet.
用格林函数运动方程方法研究了海森堡铁磁体表面自旋波谱。
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