公式表明，电磁成形时磁感应强度正弦震荡，幅值呈指数规律衰减。
The equation shows that the magnetic induction intensity is a sinusoidal oscillation signal and its amplitude is a damped exponential law.
引入正弦平方势，并在抛物线近似下解析地处理了沟道辐射的瞬时辐射强度和平均辐射强度。
The sine-squared potential is introduced in this paper, and the instantaneous intensity and the average intensity of the channeling radiation are obtained analytically.
通过分析得到整个电机电磁场的分布及波形近似为正弦的气隙磁感应强度，分析结果有助于对电机进行优化设计和控制。
A approximately sine waveform air-gap magnetic field density can be gained based on the analysis of the whole electromagnetic field. The results are helpful to optimization design and control.
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