Theoretical Study of the Structures, Spectra and Nonlinear Second-order Optical Properties of Spiroconjugated Compounds in Comparison with the Corresponding Polyenes- and Polyphenyls-linked Compounds是什么意思_Theoretical Study of the Structures, Spectra and Nonlinear Second-order Optical Properties of Spiroconjugated Compounds in Comparison with the Corresponding Polyenes- and Polyphenyls-linked Compounds在线翻译_英语_读音_用法_例句