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| burned gas | |||
| combustion gas | |||
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排出废气 : 23 phrases in 8 subjects |
| Armored vehicles | 1 |
| Automobiles | 2 |
| Corporate governance | 1 |
| Ecology | 1 |
| General | 1 |
| Metallurgy | 9 |
| Refrigeration | 1 |
| Technology | 7 |
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