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
- propagator of ghost field
- propagator of non-Abelian gauge filed in λ-gauge
- propagule bank
- propagule pressure hypothesis
- propagulum
- propamocarb
- propane
- propane-1,2,3,-triol
- propanedioic acid
- propanil
- propanoic acid
- propanol
- propargite
- propazine
- PropBank
- prop diagram
- propellane
- propellant
- propellant additive
- propellant binder
- propellant management
- propellant management test
- propellant rail transporter
- propellant settling
- propellant sloshing