A secondgeneration version of OPS 5 that incorporates an imperative sublangua ge and new compiler technology that makes it run substantially faster than the LISP based version of OPS 5.; 專家系統(tǒng)建造工具OPS 5的第二代版本，其中并入一命令式子語(yǔ)言和新的編譯技術(shù)， 使它比LISP版本運(yùn)行更快。