Some other methods such as simpleextraction methods, grinding without liquid nitrogen extraction, micro-extraction method were also used.
在此基础上又提出了快速制备法、简易提取法、无需液氮研磨提取法、微量提取法等多种方法。
2
Proper combination of simpleextraction and circulation extraction can increase yield and extract concentration simultaneously on the basis of assurance efficiency.
将简单提取和循环提取适当组合能够在保证效率的基础上使收率和提取液浓度有较大提高。
3
A step-by-step example demonstrated how to build a a simple named entity extraction task using regular expressions.