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选数器 : 32 phrases in 13 subjects |
| Agriculture | 2 |
| Aviation | 1 |
| Business | 1 |
| Computer numerical control | 1 |
| Computers | 1 |
| Electronics | 9 |
| Geophysics | 2 |
| Materials science | 1 |
| Project management | 1 |
| Rail transport | 1 |
| Space | 2 |
| Technology | 9 |
| Telecommunications | 1 |
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