短語詞組短語embedded active real -time database 嵌入式主動(dòng)實(shí)時(shí)數(shù)據(jù)庫(kù)active real -time main memory database 主動(dòng)實(shí)時(shí)內(nèi)存數(shù)據(jù)庫(kù) 返回 active real-time database