Under the subway vibration mechanical model of the permanent deformation of loess research.
地铁振动下黄土永久变形力学模型的研究。
As for the permanent magnet in the system, the (equivalent) current model is adopted.
对系统中的永磁体，采用了等效电流模型。
As for the permanent magnet in the system, the (equivalent) current model is adopted.
对系统中的永磁体，采用了等效电流模型。
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