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中子管 : 38 phrases in 16 subjects |
| Air defense | 1 |
| Aviation | 2 |
| Business | 3 |
| Chemistry | 1 |
| Drilling | 1 |
| Electronics | 4 |
| General | 2 |
| Geophysics | 7 |
| Mechanics | 1 |
| Metallurgy | 2 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Refrigeration | 1 |
| Surgery | 1 |
| Technology | 8 |
| Winemaking | 1 |
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