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關注：1
2013-05-23 12:21
求翻譯：管道系統嚴密無泄漏是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
管道系統嚴密無泄漏
問題補充： |
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2013-05-23 12:21:38
Piping system tight without leakage
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2013-05-23 12:23:18
There is a leak tight duct system
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2013-05-23 12:24:58
The piping system does not have divulging strictly
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2013-05-23 12:26:38
Pipeline system tight no leaks
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2013-05-23 12:28:18
Project completion and acceptance of a single
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