“permanent-magnet direct current motor”的概念、定义、翻译、参考文献-科学参考

单词	permanent-magnet direct current motor
释义	permanent-magnet direct current motor Encyclopedia 工学〔其他直流电机〕释 permanent-magnet direct current motor永磁直流电动机利用永磁体建立励磁磁场的直流电动机。
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