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- Extracting caffeine from the tea leaves is not a problem because a high percentage of it is removed in 2 minutes by water at 85℃ (185℉). 这时要想从茶叶中萃取出咖啡因不成问题,因为用85℃(185℉)水仅2分钟就可从中泡出绝大部分的咖啡因。
- The expensive processes currently used to extract caffeine from normal beans also strip other flavour compounds from the coffee. 现行的从咖啡豆中提取咖啡因的方法花费不菲同时也会去除咖啡中的其它味道。
- We compared some experimental methods to extract caffeine from tea.we say it useful method that make tea into the special tea dust.use it to extract caffeine by sublimation. 比较了几种从茶叶中提取咖啡因的实验方法;认为以茶末制成“茶砂”;用“茶砂”升华提取咖啡因的方法是一种较为可行的提取方法.
- Development on the Miniature Experiment of "Extracting Caffeine from Tea -leaf" "从茶叶中提取咖啡因"微型实验的改进
- Investigation on the Experiment Teaching of Extracting Caffeine from Tea Leaf 自茶叶中提取咖啡因实验教学探索与研究
- extracting caffeine 提取咖啡因
- Such an extract in a solution of alcohol. 酒精提取物酒精溶液中的提取物
- He tried to extract his pole from the mud. 他试图用力将杆子从泥中拔出来。
- It is a substance called caffeine. 这种物质就是咖啡因。
- I'm trying to cut down on sugar and caffeine. 我决定减少对糖和咖啡因的摄取量。
- Now there are cola drinks without caffeine. 现在也有不含咖啡因的可乐类饮料。
- Caffeine and nicotine are stimulants. 咖啡因和尼古丁是刺激物质。
- Caffeine makes some people feel nervous. 咖啡因会使一些人感到情绪激动。
- Coffee, tea and chocolate have caffeine too. 咖啡、茶和巧克力也都含有咖啡因。
- Cola nuts have caffeine in them. 它含有咖啡因。
- Caffeine and Sodium Benzoate Injection. 安钠咖注射液。
- It take a major operation to extract money from a minor poet. 要从小诗人那儿榨出钱来,得施行一次大手术。
- Avoid drinks that contain caffeine. 应减少饮用含咖啡因的饮品。
- The active ingredient is caffeine. 咖啡最主要的原素是咖啡因。
- The workers are extracting oil from cottonseed. 工人们正在从棉子中提炼油。