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| 设计更改建议 | |||
| 变更设计建议 | |||
| 更改设计建议 | |||
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design change proposal : 6 phrases in 5 subjects |
| Aviation | 1 |
| Bridge construction | 2 |
| Business | 1 |
| Oil / petroleum | 1 |
| Wind Energy | 1 |
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