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关注：1
2013-05-23 12:21
求翻译：保证水平排水管与污水管的连接处的畅通。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
保证水平排水管与污水管的连接处的畅通。
问题补充： |
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2013-05-23 12:21:38
To guarantee the smooth flow of horizontal drain pipes and sewer junctions.
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2013-05-23 12:23:18
That level of the drain and sewer connections at the open.
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2013-05-23 12:24:58
Guarantee horizontal discharge pipe and sewage pipe attachment point unimpededness.
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2013-05-23 12:26:38
Guaranteed level of drain and sewer connections open.
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2013-05-23 12:28:18
Assurance Level drain and sewer pipes in the smooth connection. ;
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