A Discussion of the Spin Wave Spectrum of Ferromagnet Antiferromagnet and Ferrimagnetic Crystal in the Presence of External Magnetic Field是什么意思_A Discussion of the Spin Wave Spectrum of Ferromagnet Antiferromagnet and Ferrimagnetic Crystal in the Presence of External Magnetic Field在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句