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| 风机通风; 扇风机通风 | |||
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fan ventilation : 16 phrases in 9 subjects |
| Agriculture | 1 |
| Automobiles | 2 |
| Desert science | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Technology | 7 |
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