这一方法特别适合反问题的求解，当修改裂隙(或断层)的位置时，不需要修改剖分网格。

The method is very suitable for back analysis. When location of a fracture or fault is changed, it is not necessary to modify the grid.

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同时，为避免由于电机定、转子相对运动而引起的气隙场域剖分网格的畸变问题，在气隙中引入了运动边界。

To avoid the mesh distortion in the airgap arising from the relative movement between the stator and rotor, the moving boundaries are incorporated into the finite element model.

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