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样棒 : 20 phrases in 9 subjects |
| Agriculture | 1 |
| Electric machinery | 1 |
| Engineering geology | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 3 |
| Nautical | 1 |
| Shipbuilding | 3 |
| Steel production | 2 |
| Technology | 6 |
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