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| 1. | methane power station |
| 沼气电站 |
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| 2. | methane detector |
| 沼气检测仪 |
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| 3. | methane | marsh gas |
| 沼气| 甲烷 |
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| 4. | methane | firedamp |
| 甲烷| 沼气 |
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| 5. | methane content |
| 沼气含量 |
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| 6. | liberation of methane |
| 沼气放出 |
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| 7. | methane detection |
| 沼气检查 |
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| 8. | methane gas unit |
| 沼气股 |
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| 9. | methane determinatio |
| 沼气测定 |
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| 10. | occluded methane |
| 吸留沼气 |
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