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功指数 : 19 phrases in 10 subjects |
| Automobiles | 1 |
| Commerce | 1 |
| Earth sciences | 1 |
| Electronics | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Nursing | 2 |
| Space | 2 |
| Technology | 6 |
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