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| 填筑料; 填筑材料 | |||
| 筑堤材料; 筑坝材料; 堆筑材料; 坝体土石料 | |||
| embankment material: 6 phrases in 3 subjects |
| Hydroelectric power stations | 2 |
| Rail transport | 2 |
| Technology | 2 |
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