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41. | Hirschback method |
| 上部平巷排放沼气法 |
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42. | burrel gas detector |
| 少量沼气检定器 |
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43. | lower flammability limit of methane |
| 沼气成分燃烧下限 |
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44. | To gather together;congregate. |
| 集合聚集在一起;聚集 |
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45. | Biogas plant |
| 生物气体工厂;沼气厂 |
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46. | MSA methanometer |
| MSA 型沼气检定仪 |
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47. | Biogas furnace of family |
| GB/T3606-1983家用沼气灶 |
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48. | interference methanometer |
| 干扰式沼气检定仪 |
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49. | Must be some kind of methane buildup. |
| 应该是沼气集聚起来了. |
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50. | agglomerative factor |
| 聚集因素;聚集因素 |
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