méthode champenoise
/meɪˌtəʊdʃɒŋpənˈwɑːz/noun
mass noun［often as modifier］
1- a method of making sparkling wine by allowing the last stage of fermentation to take place in the bottle香槟酒式酿造法（发酵最后阶段在装瓶后进行）。
1.1
- sparkling wine made in this way, especially a kind not made in the Champagne region of France香槟酒式酿造法汽酒。
词源
French, literally 'champagne method'.