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| 废排气; 燃烧的气态产物 | |||
| 燃烧废气 | |||
| 燃烧生成气体 | |||
| 废气; 燃烧过的气体 | |||
| burnt gas: 3 phrases in 2 subjects |
| Aviation | 1 |
| Chemistry | 2 |
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