“positive polarity machining”的概念、定义、翻译、参考文献-科学参考

单词	positive polarity machining
释义	positive polarity machining Encyclopedia 工学超声加工系统设计释 positive polarity machining正极性加工在电火花加工过程中，工件接脉冲电源正极，工具电极接脉冲电源负极的加工过程。
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