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空气模型 : 27 phrases in 11 subjects |
| Automobiles | 1 |
| Aviation | 4 |
| Earth sciences | 5 |
| Electronics | 1 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Plastics | 4 |
| Polymers | 1 |
| Technology | 7 |
| Wind Energy | 1 |
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