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关注：1
2013-05-23 12:21
求翻译：此段井筒采用圆角矩形断面是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
此段井筒采用圆角矩形断面
问题补充： |
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2013-05-23 12:21:38
This section shaft rectangular cross-section with rounded corners
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2013-05-23 12:23:18
This paragraph introduction izutsu marukado rectangular sectional
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2013-05-23 12:24:58
This section of well chambers use the fillet rectangular section
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2013-05-23 12:26:38
This section of mine shaft with rounded rectangle-section
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2013-05-23 12:28:18
This section shaft rectangular cross-section with rounded corners
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