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| 线路开通; 线路出清 | |||
| line clear: 12 phrases in 8 subjects |
| Aviation | 1 |
| Bridge construction | 1 |
| Chess | 2 |
| Computers | 1 |
| Curling | 1 |
| Electronics | 1 |
| Rail transport | 1 |
| Technology | 4 |
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