A method of retarded Green function equation of motion is applied to inveti gate the surface spin wave spectrum of Heisenberg ferromagnet.

用格林函数运动方程方法研究了海森堡铁磁体表面自旋波谱。

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In general, the flexural resonance occurs when the frequency of horizontal motion of the gate approaches the natural frequency of the cable.

通常当闸门的水平摆动频率接近索的固有频率时，将产生横向共振。

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"I would call it a collaborative effort, " said Rob Friedman, Lions Gate motion picture group co-chair, referring to Ms. Collins's participation.

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