文中导出了计算直流电机换向器片间电压分布曲线的基本公式和试验验证；

Basic formulas for the calculation of bar to bar voltage distributing curve of DC motor commutator are derived and test-verified.

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第五章基于可靠性相关理论，揭示了换向器片间介电强度检测的实质，即其本身是一项可靠性筛选试验。

In chapter 5, the essence of the commutation's dielectric strength detecting is one of screening test of reliability.

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所述的换向器在无纬带绑扎层表面粘接有绝缘胶泥密封层，在换向片端部有一环状沟槽。

The insulating rubber sealing layer is stuck on the surface of the unidirectional weftless tape banding layer for the commutator. The ring groove is arranged at the end of the commutator plate.

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