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缺口 试验 : 88 phrases in 10 subjects |
| Automobiles | 1 |
| Chemistry | 7 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 47 |
| Oil / petroleum | 3 |
| Plastics | 6 |
| Polymers | 2 |
| Steel production | 3 |
| Technology | 17 |
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