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关注：1
2013-05-23 12:21
求翻译：DN是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
DN
问题补充： |
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2013-05-23 12:21:38
DN <50 threaded connection, DN ≥ 50 clamp connection.
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2013-05-23 12:23:18
<50 DN DN ≥ 50 connections, clamps connect.
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2013-05-23 12:24:58
DN<50 screw joint, DN≥50 clip connection.
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2013-05-23 12:26:38
DN<50 threaded connections DN ¡ý 50 clamp connections.
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2013-05-23 12:28:18
Deduct the connection with DN<50 silks, DN is greater than or equal to 50 calipers to connect.
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