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| cut; fraction | |||
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粒度级分 : 37 phrases in 7 subjects |
| Explosives and Explosive Ordnance Disposal | 3 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Metallurgy | 6 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 23 |
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