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| air distribution | |||
| 空气分布: 25 phrases in 8 subjects |
| Aerohydrodynamics | 1 |
| Chemistry | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Refrigeration | 12 |
| Technology | 6 |
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