当频率很低时，阻抗矩阵中矢量磁位的贡献比标量电位的贡献小得多。
At very low frequencies, the contribution from the vector potential to the impedance matrix is much smaller than the contribution from the scalar potential.
当频率很低时，阻抗矩阵中矢量磁位的贡献比标量电位的贡献小得多。
At very low frequencies, the contribution from the vector potential to the impedance matrix is much smaller than the contribution from the scalar potential.
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