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| master terminal | |||
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| 主 终端: 30 phrases in 9 subjects |
| Air defense | 1 |
| Aviation | 2 |
| Computers | 1 |
| Electronics | 11 |
| Geophysics | 1 |
| Information technology | 3 |
| Space | 1 |
| Technology | 3 |
| Telecommunications | 7 |
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