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模式 移动 : 41 phrases in 11 subjects |
| Air defense | 1 |
| Architecture | 2 |
| Bridge construction | 1 |
| Business | 7 |
| Desert science | 1 |
| Earth sciences | 1 |
| Electronics | 8 |
| Hydroelectric power stations | 2 |
| Metallurgy | 4 |
| Plastics | 5 |
| Technology | 9 |
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