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| 燃气; 燃烧生成气体 | |||
| 易燃气体; 可燃气体 | |||
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fire gas : 37 phrases in 9 subjects |
| Automobiles | 1 |
| Environment | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Nautical | 3 |
| Oil / petroleum | 1 |
| Rail transport | 4 |
| Refrigeration | 2 |
| Technology | 22 |
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