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| 混凝土桥梁 | |||
| 混凝土桥; 混凝上桥 | |||
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concrete bridge : 90 phrases in 7 subjects |
| Bridge construction | 31 |
| Electronics | 1 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Rail transport | 2 |
| Technology | 53 |
| Wind Energy | 1 |
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