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| 排气扇: 42 phrases in 17 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| Architecture | 4 |
| Automobiles | 2 |
| Aviation | 1 |
| Drilling | 1 |
| Electric machinery | 1 |
| General | 2 |
| Household appliances | 1 |
| Metallurgy | 2 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Space | 1 |
| Steel production | 1 |
| Technology | 20 |
| Textile industry | 1 |
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