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线 路 中继 : 51 phrases in 10 subjects |
| Air defense | 3 |
| Aviation | 1 |
| Communications | 3 |
| Electronics | 22 |
| General | 1 |
| Information technology | 2 |
| Oil / petroleum | 2 |
| Space | 2 |
| Technology | 8 |
| Telecommunications | 7 |
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