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超微细 : 18 phrases in 8 subjects |
| Agriculture | 2 |
| Dermatology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 1 |
| Mining | 1 |
| Refrigeration | 1 |
| Space | 1 |
| Technology | 10 |
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