... spontaneous 自然的；天然的；自发的；自然产生的；自动的 spontaneous fermentation 自然发酵；自行发酵 spontaneous heating 自行加热；自动加热；（谷物的）自己发热 ...
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采用自行分离纯化的酵母菌y 1、乳酸菌r 3、醋酸菌c 5进行纯种混合发酵生产红茶菌饮料，并对发酵工艺条件进行优化。
Kombucha was fermented with pure strains of yeast Y1, lactobacillus R3 and acetobacter C5, and the technical conditions of fermentation were optimized.
本论文主要通过自行设计太阳能沼气池，研究太阳能对沼气发酵加热保温和消化液回流效果的影响。
This paper mainly through self-designed solar digester Researches effect of solar heating and insulating biogas fermentation and reflux of digestive fluid.
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