Based on the method of FDTD, two special boxes were constructed to calculate the far area radiation field.
在FDTD分析方法的基础上，构造出两个特殊盒子来计算远区辐射场。
The characteristic of the emission caused in the special spiral magnetic field of hydromagnetic accretion disk is discussed mainly using the formula of curvature radiation.
并着重用曲率辐射公式讨论了在磁流体吸积盘的特殊螺旋强磁场中的辐射特点。
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