In which alcoholic fermentation is the main phase of brewing, is the role of microorganisms by the yeast, the grape sugar into alcohol in the process.
其中酒精发酵是酿造的主要阶段，是经由酵母菌的微生物作用，将葡萄中的糖转变为酒精的过程。
Pear vinegar is a fruit vinegar drink made from fresh pear and black gooseberry as the main materials by crushing, pressing, alcoholic fermentation, acetic acid fermentation and formulation.
洋梨醋是以新鲜洋梨、黑醋栗等为主要原料，经破碎、压榨、酒精发酵、醋酸发酵、勾兑调配而成的一种果醋。
Fermentation was the main influence factor of Pu 'er tea quality.
发酵是影响普洱茶品质成分变化的主要原因。
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