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| 燃烧气体 | |||
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burning gas : 18 phrases in 8 subjects |
| Aviation | 1 |
| Chemistry | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Metallurgy | 3 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Technology | 9 |
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