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| 河口水: 49 phrases in 10 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Construction | 1 |
| Ecology | 2 |
| Electronics | 1 |
| Hydraulics | 1 |
| Hydroelectric power stations | 2 |
| Technology | 35 |
| United Nations | 1 |
| Water resources | 4 |
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