- pole pitch at the commutator
- 换向葡的极距
English-Chinese electron industry dictionary (英汉电子工程大词典). 2013.
pole pitch at the commutator
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History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… … Wikipedia
