短語詞組短語hierarchical and distributed system structure 分層分布式系統(tǒng)hierarchical structure system 階層式結(jié)構(gòu)系統(tǒng)multilevel hierarchical engineering structure system 多級(jí)遞階工程結(jié)構(gòu)系統(tǒng)System Hierarchical Structure 系統(tǒng)等級(jí)體系 返回 hierarchical system structure