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2013-05-23 12:21
求翻译：Sluice valve chamber overall external varies size 560mm x 480mm x 1500mm high constructed of 200mm thick reinforced concrete (Grade 20-20mm Aggregate) base, 50mm thick lean concrete (Grade 15-20 Aggregate), 225mm thick brickwork in common clay brick in ga是什么意思？ 待解决
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- 离问题结束还有
Sluice valve chamber overall external varies size 560mm x 480mm x 1500mm high constructed of 200mm thick reinforced concrete (Grade 20-20mm Aggregate) base, 50mm thick lean concrete (Grade 15-20 Aggregate), 225mm thick brickwork in common clay brick in ga
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