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| 源电极: 61 phrases in 15 subjects |
| Aviation | 1 |
| Construction | 4 |
| Drilling | 1 |
| Earth sciences | 2 |
| Electronics | 6 |
| General | 6 |
| Geophysics | 2 |
| Metallurgy | 7 |
| Oil / petroleum | 7 |
| Radio | 2 |
| Rail transport | 1 |
| Shipbuilding | 4 |
| Space | 1 |
| Technology | 15 |
| Telecommunications | 2 |
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