Extraction of characteristic quantity will affect straightway the distinguishability ratio of Wood disfigurement detection system.
特征量的提取直接影响木材缺陷检测系统的识别率。
The GC-MS composition analysis indicated that there were significant differences between surface extraction and inside extraction in quality and quantity.
MS分析显示：烟叶表面二氯甲烷萃取物和叶内萃取物在化学成分方面存在质和量的差异。
Methods: By single-factor experiment, quantity of water, degree of crush, time of extraction and soakage and the part of medicinal materials were studied.
方法：以挥发油所得量为评价指标，采用单因素比较法对提取过程中的加水量、药材粉碎度、提取时间、浸润时间及药材提取部位等进行了全面比较。
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