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导 气 器 : 45 phrases in 11 subjects |
| Automobiles | 6 |
| Aviation | 6 |
| Chemistry | 2 |
| Compressors | 2 |
| Electronics | 3 |
| Oil / petroleum | 1 |
| Otorhinolaryngology | 2 |
| Refrigeration | 2 |
| Shipbuilding | 5 |
| Space | 4 |
| Technology | 12 |
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