本文运用电磁场的梯度矢势分析了一般情况下傍轴光束的衍射传输问题。
In this paper the transmission of paraxial light beams was analyzed based on the gradient vector potential of electromagnetic field.
因此，它表明电磁场的梯度矢势具有更明显的物理意义。
This indicates that there is more profound physical meaning of the gradient vector potential of electromagnetic field.
根据电磁场理论，可计算出相应的矢势。
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