提取泡沫或罐式香槟法是在高压炉里的第二次发酵，能够使酒起泡沫，因为酵母产生了二氧化碳。

The taking of foam or Charmat Method is the second fermentation in autoclave that makes the wine sparkling, because of the carbon dioxide generated by the yeasts.

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提取泡沫或罐式香槟法是在高压炉里的第二次发酵，能够使酒起泡沫，因为酵母产生了二氧化碳。

The taking of foam or Charmat Method is the second fermentation in autoclave that makes the wine sparkling, because of the carbon dioxide generated by the yeasts.

youdao