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交换 通信 : 71 phrases in 12 subjects |
| Agriculture | 2 |
| Aviation | 4 |
| Business | 3 |
| Computer networks | 2 |
| Electronics | 33 |
| General | 1 |
| Information technology | 4 |
| Project management | 1 |
| Rail transport | 1 |
| Space | 6 |
| Technology | 6 |
| Telecommunications | 8 |
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