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大 洪水: 72 phrases in 14 subjects |
Agriculture | 2 |
Architecture | 1 |
Bridge construction | 10 |
Desert science | 2 |
Earth sciences | 1 |
Electronics | 5 |
Engineering geology | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 4 |
Hydroelectric power stations | 8 |
Hydrology | 1 |
Metallurgy | 1 |
Technology | 34 |
Water resources | 1 |