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| 喷射推进气体; 工艺废气 | |||
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reaction gas : 35 phrases in 12 subjects |
| Automobiles | 1 |
| Aviation | 5 |
| Earth sciences | 1 |
| Ecology | 1 |
| Electronics | 2 |
| Metallurgy | 11 |
| Oil / petroleum | 1 |
| Oil processing plants | 1 |
| Plastics | 1 |
| Rail transport | 1 |
| Space | 2 |
| Technology | 8 |
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