... extraction fractionation 提取分级（分离），萃取分级 extraction indicator 抽提指示剂，萃取指示剂 extragenic promoter 基因外启动子 ...
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extraction n indicator 抽提指示剂
Extraction toxicity is an important identification indicator of hazardous waste toxicity characteristics.
浸出毒性是危险废物毒性特性鉴别的重要指标。
By using orthogonal test, the extraction rate of total flavonoids of Litchi was applied as the observatory indicator to investigate the extraction process.
采用正交试验，以荔枝核总黄酮的提取率为考察指标，优化提取工艺。
Methods: the extraction technique was evaluated by single factor experiment and orthogonal design, with the extraction rate of the asiaticoside as indicator.
方法：以积雪草苷提取率为评价指标，采用单因素实验与正交实验设计优选出积雪草中积雪草总苷的提取条件。
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