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1·Now, it has been applied to calculating atomic and molecular polarization rate, susceptibility, total energy, bond energy etc.

目前已被广泛用来计算原子和分子的极化率、磁化率、总能量、键能等。

2·The nonlinear spectroscopy created by many kind of optical processes are observed while two-photon resonance enhanced the atomic nonlinear susceptibility.

双光子共振增强了碱金属原子的非线性极化率，可以观测到多种非线性光学过程产生的非线性光谱。