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关注：1
2013-05-23 12:21
求翻译：必须采用高强度、高延性钢作为预加应力的材料。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
必须采用高强度、高延性钢作为预加应力的材料。
问题补充： |
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2013-05-23 12:21:38
Must be of high strength, high ductility steel as a prestressing material.
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2013-05-23 12:23:18
It must be a high-intensity, and high-cost steel as an early-warning and stress the material.
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2013-05-23 12:24:58
Must use, the high ductility steel high strength takes the pre the material.
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2013-05-23 12:26:38
Must be of high strength, Takanobu steel as prestressing materials.
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2013-05-23 12:28:18
Must adopt high strength, high ductile steel as the material adding the stress in advance.
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