从凸极率角度出发，对内部磁极结构电机提出了新的设计方法。
The new method was proposed to design linear synchronous motor with interior permanent under the flux-weakening speed control from the saliency ratio.
为了解决磁性流体密封的实际应用问题，必须解决密封磁极结构参数与密封性能的关系。
To solve the problem with the application of magnetic fluid seal, the relationship between its polar structural parameters and sealing performance must be clarified.
其内部磁路采用计算机模拟设计、完善的双磁极结构，保障整机在恶劣环境中无故障长期运行。
It USES computer simulation design with double magnetic poles structure to make the machine work long without troubles in adverse circumstance.
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