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轨接头 : 78 phrases in 10 subjects |
| Architecture | 1 |
| Aviation | 3 |
| Bridge construction | 5 |
| Construction | 1 |
| Electronics | 1 |
| General | 2 |
| Metallurgy | 4 |
| Rail transport | 7 |
| Space | 2 |
| Technology | 52 |
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