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關注：1
2013-05-23 12:21
求翻譯：管道埋地前需清洗干凈,避免雜物存在.是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
管道埋地前需清洗干凈,避免雜物存在.
問題補充： |
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2013-05-23 12:21:38
Buried pipeline to be cleaned first to avoid the debris there.
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2013-05-23 12:23:18
underground pipelines need to be washed away, and avoid debris before that exists.
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2013-05-23 12:24:58
The pipeline buries in front of the place to have to clean cleanly, avoids the sundry goods existence.
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2013-05-23 12:26:38
Buried pipeline before cleaning, avoid debris.
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2013-05-23 12:28:18
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