通过电路和磁路推导，提出了该集成磁件的等效模型和设计依据。
The equivalent model and design consideration are put forward through electric and magnetic circuit analysis.
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.
讨论了大气折射的射线追踪算法和等效地球模型；
The radial-tracing algorithm and the effective earth model are discussed.
提出了等效气动效应法，建立了加油机尾流场的等效扰动模型。
The experimental study for wake characteristic of the refueling airplane model;
提出了等效气动效应法，建立了加油机尾流场的等效扰动模型。
The experimental study for wake characteristic of the refueling airplane model;
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