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| 地面作业: 19 phrases in 8 subjects |
| Advertising | 1 |
| Automobiles | 1 |
| Aviation | 9 |
| Earth sciences | 4 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Space | 1 |
| Technology | 1 |
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