分区顺序档案
partitioned sequential file
partition sequential file
顺序档案结构
sequential access
sequential file structure
顺序档案输入叙述
sequential file input statement
顺序档案组织
sequential file organization
索引非顺序档案
indexed nonsequential file
索引顺序档案管理
indexed sequential file management
顺序存取档案
file of sequential access
顺序大量储存档案
sequential mass storage file