本论文提出了一种反向法变极绕组的系统设计方法和最小对称槽号组的概念。

This paper proposes a systematic method in the design of pole-changing windings based on reversing coil techniques and the concept "the minimum symmetric coil groups".

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矛盾修饰法作为措辞上的一种矛盾，直至1902年才出现，当时，努力学着变懒的人据说是活生生的矛盾修饰法的例子。

Oxymoron as a contradiction in terms didn't show up until 1902 when someone who worked hard at being lazy was said to be a living oxymoron.

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以锥形桩为例，用能量法对变截面桩的屈曲问题进行了深入研究。

With the example of taped pile, the buckling problem of variable section piles was analyzed with the energy method.

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