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| 51. | The biogas system is the kernel component of Guquan Experimental Farm of Ecological Engineering. |
| 沼气系统是古泉生态实验场的核心部分。 |
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| 52. | Ringrose pocket methanometer |
| 里因罗斯袖珍沼气检定仪 |
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| 53. | Those mines have the highest concentration of methane gas. |
| 那些矿井全都充满着高密度的沼气 |
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| 54. | Now scientists from Europe and the Philippines have discovered that less methane is made in fields where the plants are producing more grain. The reason is that making methane needs carbon. |
| 现在，来至欧洲和菲律宾的科学家发现在生产更多稻谷的稻田中，产生较少的沼气。因为产生沼气需要炭。 |
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| 55. | You obviously don't know anything about methane deposits. |
| 你不是也不知道这有沼气聚集吗. |
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| 56. | Domestic hot water is provided mainly by a heat pump using exhaust air from the composting toilet. |
| 家庭生活热水主要由以沼气为燃料的热泵提供的，沼气是由带发酵装置的厕所产生的。 |
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| 57. | Operation rules of construction and nstallation of biogas pipelines for peasant household |
| GB/T7637-1987农村家用沼气管路施工安装操作规程 |
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| 58. | Developing biogas in countryside can exploit energy resources, and its fermentation residue can be used as organic fertilizer, which can not only improve soil fertilization, but also improve crop yield and quality. |
| 农村发展沼气不仅可以开辟能源利用,而且其沼气发酵残留物可作为有机肥肥源,提高土壤肥力,改良土壤,促进农业良性循环。 |
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| 59. | landfill gas hazard assessment |
| 沼气危险评估；堆填区气体风险评估 |
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| 60. | Domestic household biogas construction is the main project of renewable energy in rural area. |
| 户用沼气建设是农村可再生能源开发利用的主要项目。 |
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