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关注：1
2013-05-23 12:21
求翻译：A, B, C为三相火线，N为零线。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
A, B, C为三相火线，N为零线。
问题补充： |
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2013-05-23 12:21:38
A, B, C for the three-phase phase, N is zero line.
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2013-05-23 12:23:18
For 3, B A, C N sang FireWire, to zero line.
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2013-05-23 12:24:58
A, B, C is the three-phase firing line, N is a zero curve.
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2013-05-23 12:26:38
A, b, c is three-phase line, n is zero.
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2013-05-23 12:28:18
A, b, c is three-phase line, n is zero.
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