at the same time by using c program language i finished this expert system efficiently, including knowledge expressing, multi-task completing, problem solving and interpreting on tms . additionally, i make emphasis on describing the bnf, which is a formation of knowledge describing language ( kdl ), and make thorough analysis on principle of syntax and grammar of kdl . i have analyzed the result of simulating field data from the expert system, the conclusion is that the expert system has outstanding effects on application in air separating optimizing system 文中討論了該優(yōu)化專(zhuān)家子系統(tǒng)各模塊的功能及開(kāi)發(fā)思想策略,并介紹了多任務(wù)專(zhuān)家系統(tǒng)的知識(shí)實(shí)體表達(dá)、多任務(wù)協(xié)調(diào)求解、基于tms的問(wèn)題求解方式、基于tms的解釋機(jī)制等內(nèi)容,詳細(xì)描述了知識(shí)描述語(yǔ)言(kdl)的巴科斯范式(bnf)形式,具體分析了kdl的語(yǔ)法、語(yǔ)義分析器的作用原理,對(duì)現(xiàn)場(chǎng)數(shù)據(jù)專(zhuān)家子系統(tǒng)調(diào)優(yōu)仿真結(jié)果進(jìn)行了分析,仿真控制結(jié)果表明專(zhuān)家系統(tǒng)在氣分優(yōu)化指導(dǎo)系統(tǒng)中的應(yīng)用具有很好的效果。