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排风扇 : 41 phrases in 17 subjects |
Agriculture | 1 |
Animal husbandry | 1 |
Architecture | 2 |
Automobiles | 3 |
Aviation | 1 |
Chemistry | 1 |
Drilling | 1 |
Electric machinery | 1 |
General | 2 |
Metallurgy | 2 |
Nautical | 1 |
Oil / petroleum | 1 |
Rail transport | 1 |
Space | 1 |
Steel production | 1 |
Technology | 20 |
Textile industry | 1 |