理学 自动问答技术 释 knowledge extraction 知识抽取 把蕴含于信息源中的知识经过识别、理解、筛选、归纳等过程抽取出来，存储形成知识元库。
人工智能 知识工程 释文 knowledge extraction 知识提取
- Freudenthal suspension theorem
- Freundlich adsorption equation
- Freundlich adsorption isotherm
- Freundlich crater
- Freundlich equation
- Freundlich isotherm
- Freund's complete adjuvant，FCA
- Freund's incomplete adjuvant，FIA
- Frey
- freyalite
- Frey curve
- Frey elliptic curve
- f(R) gravity model
- F. R. Helmert
- F. R. Helmert (1843—1917)
- Fria
- friability
- friable Sands
- friable sands
- friar
- fricative
- Fricke
- Fricke dosimeter
- Fricsay Ferenc
- frictiograph