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选通器 : 83 phrases in 14 subjects |
| Agriculture | 1 |
| Air defense | 11 |
| Astronautics | 1 |
| Computers | 1 |
| Construction | 1 |
| Electronics | 29 |
| General | 2 |
| Geophysics | 1 |
| Metallurgy | 3 |
| Oil / petroleum | 2 |
| Project management | 2 |
| Space | 10 |
| Technology | 17 |
| Telecommunications | 2 |
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