1. This method is good for extracting rutin with its high extraction rate and low production cost. 利用此法提取芦丁提取率高、成本低，是一种很好的芦丁提取方法。
2. Feature extraction is the foundation of audio classification, while audio classification is a key of content based audio retrieval. 音频特征提取是音频分类的基础，而音频分类又是基于内容的音频检索的关键。
3. "how to extract resources and the preservation icon" complementary to the source code yourself have done an icon for the extraction tool? 《如何提取并保存图标资源》配套源代码想自己动手也做一个适合自己的图标提取工具呢？
英英解释
n.
1. the process of obtaining something from a mixture or compound by chemical or physical or mechanical
2. properties attributable to your ancestry
3. the act of pulling out (as a tooth)
