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| 零位置: 28 phrases in 11 subjects |
| Air defense | 1 |
| Astronautics | 1 |
| Automobiles | 2 |
| Aviation | 4 |
| Electronics | 4 |
| General | 1 |
| Nursing | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Space | 4 |
| Technology | 8 |
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