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关注：1
2013-05-23 12:21
求翻译：C 表示工作零线与保护线是合一的是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
C 表示工作零线与保护线是合一的
问题补充： |
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2013-05-23 12:21:38
C is the zero line and the line of protection is one of the
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2013-05-23 12:23:18
The C mean work zero lines and the protection line are something to unite as ones
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2013-05-23 12:24:58
C expressed the work zero curve and the guard wire are gather one
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2013-05-23 12:26:38
C for the zero line and the line of protection is
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2013-05-23 12:28:18
C for the zero line and the line of protection is
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