分层次索引顺序直接存取法的英文

hisdam hierarchical indexed sequential direct access method

hisdam hierarchical indexed sequential direct access method

• 分:    component
• 层次:    administrative lev ...
• 索引:    index; indexing; k ...
• 顺序:    sequence
• 直接:    direct; immediate
• 存取法:    access method