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2 definitions found

From: MDBG CC-CEDICT Chinese-English Dictionary 漢英字典

 正負 [ㄓㄥˋ ㄈㄨˋ; zheng4 fu4]
 positive and negative
 

From: Japanese-English Electronic Dictionary 和英電子辞書

 正負
 せいふ
 noun (common) (futsuumeishi)
 positive and negative
 +-
 plus and minus