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技术影响 : 15 phrases in 10 subjects |
| Aviation | 2 |
| Ceramics | 1 |
| Desert science | 1 |
| Economy | 2 |
| Environment | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Mining | 1 |
| Name of organization | 2 |
| Technology | 1 |
| United Nations | 2 |
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