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水流曲线 : 72 phrases in 9 subjects |
| Architecture | 1 |
| Bridge construction | 2 |
| Electric machinery | 1 |
| Electronics | 2 |
| Engineering geology | 5 |
| Hydroelectric power stations | 11 |
| Hydrology | 2 |
| Technology | 45 |
| Water resources | 3 |
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