There are various ways of making biofuels, but they generally use chemical reactions, fermentation, and heat to break down the starches, sugars, and other molecules in plants.
如今是有很多种方法来制造生物燃料，但多数情况下还是采用化学反应，发酵和热能来分解植物中的淀粉、糖分以及其他分子。
This paper investigates an "efficient installation recovering heat energy" used in rural biogas plant for economical heating in mesophilic fermentation.
本文报导了一种用于农村沼气池中温发酵经济加温的柴油发动机的高效热回收装置。
This paper has analysed the relationship between the selection of the temperature and the corresponding heat balance of an anaerobic fermentation system.
本文分析了厌氧发酵温度的选择和厌氧系统中热量平衡的关系。
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