特别是对于TM波，考虑了非线性折射率的双轴性，没有任何近似。
In particular, for the TM case, the biaxial nature of nonlinear refractive index is considered without any approximation.
特别是对于TM波，考虑了非线性折射率的双轴性，没有任何近似。
In particular, for the TM case, the biaxial nature of nonlinear refractive index is considered without any approximation.
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