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向 精度 : 20 phrases in 9 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Medical appliances | 1 |
| Oil / petroleum | 2 |
| Space | 7 |
| Technology | 5 |
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