膜分离技术与真空冷冻干燥技术在速溶茶加工上应用的原理及优越性，以及速溶茶的广阔前景。
The principles and advantages of the membrane separation, vacuum freeze drying in instant tea processing, the bright future of the instant tea were outlined.
真空冷冻干燥是集真空技术、冷冻及干燥技术为一体的食品加工方法。
Vacuum freeze-drying, including the techniques of vacuum, freezing and drying, is a food processing method.
正所谓没有完美的技术，真空冷冻干燥技术的主要缺点是成本高。
The so-called no perfect technology, vacuum freeze drying technology of the main disadvantages of high cost.
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