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| 富天然气含石油气多的天然气 | |||
| 伴生气; 油井气 | |||
| 混合气体; 混合煤气 | |||
| 混合气; 油气; 富天然气含大量石油气 | |||
| 富天然气 | |||
| combination gas: 22 phrases in 5 subjects |
| Chemistry | 1 |
| Metallurgy | 5 |
| Oil / petroleum | 2 |
| Refrigeration | 2 |
| Technology | 12 |
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