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| 废气 | |||
| up-gas: 39 phrases in 11 subjects |
| Agriculture | 1 |
| Chemistry | 2 |
| Compressors | 1 |
| Electric machinery | 2 |
| Electronics | 8 |
| Metallurgy | 5 |
| Oil / petroleum | 4 |
| Polymers | 1 |
| Racing and motorsport | 1 |
| Refrigeration | 1 |
| Technology | 13 |
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