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| 串行系统 | |||
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serial system : 21 phrases in 11 subjects |
| Aviation | 2 |
| Construction | 1 |
| Earth sciences | 1 |
| Electronics | 3 |
| General | 1 |
| Librarianship | 1 |
| Metallurgy | 1 |
| Multimedia | 2 |
| Project management | 1 |
| Space | 2 |
| Technology | 6 |
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