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线 隧道 : 47 phrases in 12 subjects |
| Electronics | 5 |
| Engineering geology | 2 |
| Finances | 1 |
| Hydroelectric power stations | 1 |
| Information technology | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Rail transport | 2 |
| Space | 1 |
| Technology | 30 |
| Textile industry | 1 |
| Wind Energy | 1 |
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