1. 專家系統(tǒng)是一套能夠整理并呈現(xiàn)既有知識(shí)的電腦程式。
   An expert system is a program which organizes and presents pre- existing knowledge.
2. 一種適于開發(fā)專家系統(tǒng)的語言、操作系統(tǒng)和軟件包，它是由美國卡內(nèi)基－梅隆大學(xué)開發(fā)的。
   A combination of language, operating system, and software packages suited to the development of expert system. Developed at Carnegie-Mellon University.
3. 使用專家系統(tǒng)而發(fā)生的用戶和專家系統(tǒng)之間的交互作用。
   The interaction between user and expert system arising from the expert system's use.
4. 在大多數(shù)基于規(guī)則的專家系統(tǒng)中的基本表示單元。它類似于傳統(tǒng)數(shù)據(jù)處理中的變量，但有不同之處，屬性可具有性質(zhì)，而不一定代表記憶存儲(chǔ)單元。
   The basic representation unit in most rule-based expert systems. Similar to variables in traditional data processing, but different in that they may own properties, and do not necessarily represent memory storage locations.

專家的英語翻譯：

系統(tǒng)的英語翻譯：