红茶的提取物通常是用热水或沸水通过逆流萃取工艺来制取的。
Black tea extracts are normally produced by a hot or boiling water extraction process usually a countercurrent process.
研究淡竹叶中总黄酮最佳萃取工艺条件，并对淡竹叶提取物进行抗氧化性测定研究。
The extractive effect by alcohol has been studied to extract the flavonoids in the Common Lophatherum Herb.
为寻找一条适合工业化生产的低成本、低能耗、高效率的柑桔精油提取工艺路线，该文采用微胶囊与双水相联合萃取技术提取柑桔精油。
To find out a low cost, low resource-consuming and high efficiency process to extract essential oil from citrus peel, microcapsules along with aqueous two-phase extraction were adopted.
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