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点特征 : 17 phrases in 8 subjects |
| Artificial intelligence | 2 |
| Ecology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Oil processing plants | 1 |
| Space | 4 |
| Technology | 6 |
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