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| 自动中继系统; 自动转发系统 | |||
| automatic relay system: 18 phrases in 9 subjects |
| Aviation | 1 |
| Communications | 2 |
| Electronics | 3 |
| General | 1 |
| Information technology | 1 |
| Rail transport | 2 |
| Space | 3 |
| Technology | 3 |
| Telecommunications | 2 |
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